Posts Tagged ‘bulk-fill’

Crosman model 116 .22-caliber bulk-fill CO2 pistol: Part 2

by Tom Gaylord, a.k.a. B.B. Pelletier

Neat fix for bulk-fill CO2 guns
Part 1

Crosman 116 pistol
Crosman’s 116 bulk-fill pistol is a .22-caliber single-shot pistol.

Today, we’ll look at the velocity of the Crosman 116 .22-caliber bulk-fill CO2 pistol. A couple things will complicate this test. First is the fact that the pistol has adjustable power. I’ll account for that with several power adjustments, but that isn’t all that’s going on.

The bulk-fill process is itself somewhat complex; because if the bulk tank doesn’t have enough liquid CO2 in it, or if the tank and the gun are both warm, the fill will be less dense and will therefore produce fewer total shots. Let’s look at the fill process before we examine the gun.

The bulk-fill process
Filling an airgun from a bulk tank requires that the filling tank has sufficient liquid CO2 inside to transfer the maximum amount possible to the gun. When I say the maximum amount possible, I mean what’s maximum under safe operating conditions. It’s possible to overfill a CO2 tank or gun and create a dangerous condition.

CO2 pressure is controlled by the ambient temperature rather than by compression. If you make the CO2 storage vessel volume smaller somehow, you don’t compress the gas inside. Instead what happens is more of the gas condenses into liquid. It will continue to do so right up to the point that there’s 100 percent liquid inside the tank.

While that sounds good, it isn’t; because when the liquid inside the tank heats up, it tries to expand into gas again. As long as there’s space inside the tank for the liquid to evaporate into gas, you’re safe; but when the safety volume is filled, all the liquid CO2 can do is increase in pressure. It does so at an astounding rate, quickly developing over 10,000 pounds per square inch at temperatures that are still well within human tolerance. That’s why tanks rated for CO2 storage contain safety burst disks to prevent the tank from becoming a dangerous bomb. It’s also why several airgunners have been startled when their tanks’ burst disks actually burst while stored in their cars on hot days. Once the burst disk ruptures, all gas is lost and the burst disk must be replaced before the tank can be used again.

These days, most airgunners get their bulk tanks filled at paintball stores; but in my day, they filled them at home. There were even larger bulk tanks of CO2, holding 20 pounds of liquid. They came from the food and beverage industry, or they were large fire extinguishers. I own 2 of these 20-lb. CO2 tanks that I use to fill my bulk CO2 tanks for guns.

Filling bulk tank
The 12-oz. paintball tank is coupled to the 20-lb. CO2 tank for filling. This big tank has a siphon tube, so only liquid escapes the valve when it’s in the upright position. Couplings are custom made for this.

Once the smaller bulk tank has been filled, it’s time to fill the gun. Remember, the object is to transfer as much liquid CO2 as possible for a dense fill. That doesn’t give more power — it gives more shots. The CO2 controls the pressure, depending on the ambient temperature.

filling gun
The 12-oz. paintball tank is then coupled to the CO2 gun like this. With the CO2 tank hanging down, the liquid in the tank is just behind the valve, where it will flow readily from the tank into the gun. This paintball tank has a special adapter with a wheel to control the opening of the valve.

Filling the gun takes just a few seconds. It actually makes a sound, and you can tell when it’s full because the noise of the transfer stops abruptly. The outside of the gun may become cold and wet with condensation when the new CO2 inside evaporates to gas. As long as you do this transfer at room temperature, everything will be safe, for the liquid CO2 will evaporate and stop the fill before the gun accepts too much liquid. The gun is now full and ready to test.

Shot count
Because the pistol has adjustable power, I tested it on high power first. I found that there were 21 good powerful shots with the gun set on the highest power. Then, I adjusted it to medium power and finally to the lowest power. Medium power was very close to high power in all respects, but on the lowest power the total number of shots per fill increased to 32.

Crosman Premier
This is a Crosman gun, so Crosman Premier pellets sounded like the best place to begin. On high power, they averaged 390 f.p.s. The range went from a low of 384 to a high of 409 f.p.s. At the average velocity, this pellet generates 4.83 foot-pounds at the muzzle.

On medium power, they weren’t much slower — averaging 386 f.p.s. But on low power, they averaged 331 f.p.s. for an average 3.48 foot-pounds of energy.

RWS Hobbys
Next, I tried RWS Hobby pellets. In .22 caliber, these weigh 11.9 grains and average 423 f.p.s. in the test pistol. That’s a muzzle energy of 4.73 foot-pounds. The low was 413 f.p.s., and the high was 435 f.p.s. On medium power, Hobbys went an average 402 f.p.s.; and on the lowest power, they averaged 369 f.p.s. That’s good for a muzzle energy of 3.60 foot-pounds. On low power, the low velocity was 355; and the high was 383 f.p.s.

RWS Superdomes
The last pellet I tried was the RWS Superdome. This pellet weighs 14.5-grains in .22 caliber and is a favorite among many airgunners for all 3 powerplants. On high power, Superdomes averaged 376 f.p.s. The low was 362, and the high was 391 f.p.s. At the average velocity, Superdomes generated 4.55 foot-pounds. On medium power, they averaged 367 f.p.s.; and on low power, they averaged 345 f.p.s. On low power, the low velocity was 341, and the high was 348 f.p.s. At the average velocity, they generated 3.83 foot-pounds of muzzle energy.

Trigger-pull
The trigger-pull on the test pistol measures 4 lbs., 2 oz. That’s a little heavy, but it’s very crisp, so it’s going to be okay for target work. There are no provisions for adjustment on this trigger; so if I want to change the pull, I have to do some gunsmithing.

Odd note
I noted that when the gun was fully charged, the velocity always started lower and climbed into the good range — just like a precharged gun that’s overfilled. On the lowest power, the gun sometimes failed to discharge. CO2 guns aren’t supposed to do that, so I assume either the valve return-spring has weakened over the past 60 years, or someone has been inside the valve and changed things. Either way, that’s a good reason for an overhaul. The transmission sealer worked and now so does the gun; but it doesn’t work exactly as it should. That’s also probably why the number of shots per fill was lower than expected.

Overall evaluation
To what can I compare this air pistol? How about to a Crosman 2240, which is also a .22-caliber single shot but runs on 12-gram CO2 cartridges, but in many other ways is like the test pistol? The 2240 has a 7.5-inch barrel, so it’s a little faster than this 116 with a 6-inch barrel (Premiers averaging 448 f.p.s. to the 116′s 390 f.p.s.). Its sights are fully adjustable. The grip, while a bit larger, feels very much the same. So, if a 116 and bulk-filling aren’t in your future, know that there’s a good alternative.

I do think the test pistol is shooting a little slow for a 116. Maybe it would be best to get it overhauled to see what one in top condition can do

Crosman model 116 .22-caliber bulk-fill CO2 pistol: Part 1

by Tom Gaylord, a.k.a. B.B. Pelletier

Neat fix for bulk-fill CO2 guns

Crosman 116 pistol
Crosman’s 116 bulk-fill pistol is a .22-caliber single-shot pistol with power and accuracy that surpasses many of today’s air pistols.

Before we start, a word on the “fix” for CO2 guns that Dennis Quackenbush gave me. Some folks are concerned that this will ruin the guns it’s put into. Well, it will soften the seals, and eventually those seals will dissolve into a jelly-like material that won’t seal the gun. How fast that happens depends on how much of the automatic transmission sealer you use. But here’s my thinking. The gun already doesn’t work. If this restores it to operation for a few years, or even for only a few more months, that’s more than you have now. In the end, you may need to replace all the seals anyway, but that was what you faced when you decided to do this. No permanent harm has been done. And you got some use from a gun that needed seals.

Don’t add the sealant if you don’t want to — that’s always your decision to make. But some of you are glad to know that there’s a quick, cheap way to fix many of these guns right now.

For those who are paying attention, we’ve actually reported on the 116 in the past. One of these is a blog that I did, and the other is a guest blog by blog reader Paul Hudson. Today’s blog is just the beginning of a traditional 3-part report, so we’ll be looking at this gun in greater detail.

History of bulk-fill CO2 guns
Carbon dioxide guns descended from pneumatic guns in the 1870s, when Paul Giffard first started building and selling his 4.5mm, 6mm and 8mm gas guns for the public. They were based on the Giffard multi-pump pneumatics that had been around for 20 years, but these new guns offered something the older pneumatics didn’t. They could be fired many times from one charged tank of gas. When the tank was finally depleted, it had to be returned to a filling station, which was hopefully located in the same country as the gun! That inconvenience overpowered the novelty of the guns that fired without gunpowder, and they did not last very long.

Giffard air pistol

Giffard gas pistols can be restored to work today — 130+ years after they were made!

Crosman started experimenting with building and selling entire commercial shooting galleries for the public in the early 1930s, and they chose gas guns for these galleries. Each rifle, designated the model 117, was tethered to a large tank of CO2 (that was essentially a fire extinguisher) located inside the gallery, and they must have gotten tens of thousands of shots from one tank.

After World War II, Crosman redesigned the model 117 into a rifle that used a self-contained 12-gram CO2 cartridge, and they designated it the model 118. Perhaps a number of unsold model 117 rifles were rebuilt into model 118 rifles and sold to the public because 117 airguns are extremely rare today. Model 118 air rifles, in contrast, do exist in numbers large enough for many collectors to have them.

But these aren’t the guns we’re looking at in this report. We’re looking at guns like the model 111 (.177 caliber) and 112 (.22 caliber) gas pistols that were filled from 10-oz. tanks of CO2. These started selling as early as 1950 and ended production in 1954, according to the Blue Book of Airguns. The 10-oz. tanks that filled them were designated as the model 110, though not very many people know it. These 2 pistols had 8-inch barrels and got as many as 70 shots per fill of gas. Of course, that depended a lot on the density of the fill, or how much liquid CO2 was put into the gun’s reservoir.

Bulk-filling in brief
When you fill a gas gun from a bulk tank, the liquid CO2 inside the tank used for filling is under tremendous pressure from the gaseous CO2. Carbon dioxide has a vapor pressure of 853 psi at 70˚F. When it’s forced as a liquid into a reservoir of any size, it evaporates instantly until the pressure inside the reservoir reaches the same pressure as is inside the tank that’s doing the filling. This liquid will remain a liquid until the gas pressure in the tank drops, such as when filling another tank or a gun. Then, some of the liquid will flash to gas, boosting the pressure back up to whatever is dictated by the ambient temperature. So, CO2 is a gas that regulates its own pressure. Unfortunately, it’s also a world-class refrigerant!

As CO2 liquid flashes to gas and expands, it takes a lot of heat from its surroundings. So much, in fact, that shooters run the risk of instant frostbite when a CO2 cartridge exhausts to the atmosphere. Because of this, CO2 will cool the gun in which it is used. As it cools, its vapor pressure drops. Guns that are fired fast in rapid succession will shed hundreds of feet per second of velocity. Many shooters think this is the CO2 bleeding off and losing pressure, but it’s really just a reaction to the rapid change in temperature. Shoot the same gun slower, and the velocity will remain high and consistent much longer. That’s true for all CO2 guns, whether powered by cartridges or bulk gas. Just for clarification, fast means as fast as you can pull the trigger, and slower means waiting at least 10 seconds between shots.

The 116
The 115 and 116 models are very similar to the models 111 and 112; except, instead of 8-inch barrels, both these pistols have 6-inch barrels. The Blue Book says they were introduced in 1951 and lasted until 1954, but what I think actually happened was all 4 pistols went away when the first model 150/157 came out. That was the first gun Crosman made that used a 12-gram CO2 cartridge. Their gas reservoirs, which are brass tubes under the barrel, are scaled to fit the shorter barrel, so of course they hold less gas. I’ve seen a .177 version of this pistol — the model 115 — get as many as 50 powerful shots on a fill, but I think 30 is a more realistic number. We’ll test the 116 over a chronograph and figure out the actual performance data for ourselves.

All 4 pistols and the 2 rifles that were their companions (models 113 and 114 in .177 and .22 caliber, respectively) have adjustable power! That’s right, they had adjustable power all the way way back in the early 1950s. A screw at the rear of the receiver is turned in to put more tension on the striker and thus give longer valve open time and more power. In that respect, these pistols function very much like modern PCPs.

Crosman 116 pistol power adjustment
Turn the lower knob in to increase the power — out to slow down the gun and get more shots per change. The upper knob is where you grab the bolt

The sights are also adjustable. The rear sight is a simple notch and the front sight is a tall squared-off post. The rear sight leaf slides from side to side in an oval slot with a lock screw holding it position. A second smaller headless screw provides a range of elevation.

Crosman 116 pistol rear sight
The rear sight slides from side to side and also adjusts up and down.

If the grips appear similar to what you see today, they are! Crosman got it right the first time and really didn’t change it that much over the decades and across the models. These grips come in 2 pieces that wrap around the grip frame, where today they’re flatter panels that leave the frame showing through; but the overall shape and angle are very similar.

The finish is paint, which was completely expected and acceptable in the 1950s. The barreled action is painted with a gloss black paint and the grip frame is painted with a crackeled finish. Hobbyists can reproduce these finishes today, so it’s not surprising to see an old gun that looks like new.

The barreled action is made mostly of brass tubing and parts, and the grip frame is made of pot metal. Small parts such as the trigger, sights, screws and power adjustment knobs are steel.

The grips are plastic, and the .22 models started out with reddish-brown grips, while the .177 models were sold with whitish grips that sometimes have thin lines of other colors running through them. Of course, you can find any color grips on a gun today because the grip frames are all identical and a lot of swapping has been done in the past 60 years. The grips are ambidextrous and only the crossbolt safety keeps the entire gun from being completely friendly to people favoring either hand.

The pistol has a conventional turnbolt that both cocks the striker and opens the breech to load a pellet. I call it conventional, but it will only seem so to someone who has seen a lot of 1930- to 1950s-era airguns. There’s no bolt handle. Instead, you turn a knurled knob counterclockwise; and when it unlocks, pull it straight back until the sear catches the striker. Then, the pellet trough is open to load one pellet. Pushing the bolt back home and twisting it clockwise seats the pellet into the rifling and also aligns the gas transfer port with a hole in the bottom of the hollow bolt.

Trigger
If these pistols can be said to have a weak spot, it’s the trigger. It’s a thin blade acting on a direct sear that releases the striker. It can be easily gunsmithed to be a light release, as long as you appreciate that it may not always be safe that way. I’ve owned all 4 models of this pistol, and a 111 that was my first one had a very nice, light trigger. The trigger on this 116 is neither light nor especially crisp. It’s better than a lot of modern pistol triggers but is only average for one of these older vintage guns.

Accuracy
I’ll never forget the accuracy of my first 111 pistol. I actually thought it was almost as accurate as a 10-meter target pistol. At 10 meters, I had little difficulty keeping 10 shots on a nickel. But since I haven’t shot this 116 yet, I have no idea where it’ll be. I do know that Crosman called it a target pistol, and it’s hard to argue that it isn’t. I think you’ll be surprised when I test it.

2012 Arkansas airgun show

by B.B.Pelletier

Every airgun show is unique. I’ve said that many times before, but it’s always true — and this one was no different. What I look for when I try to describe an airgun show is how it stood out from all the others. That’s what I’ll do today.

An airgun show is small, in comparison to0 a regular gun show, but there are more airguns on a single table then you’ll see at most big gun shows. And the guns range from inexpensive Daisys and Crosmans to then most exotic airguns imaginable. So go to gun shows for and crowded aisles, but to airgun shows to find airguns.

I didn’t get away from my table for the first half of the first day. When I finally did, the show immediately began to reveal itself. It was jam-packed with big bore air rifles! I mean jammed! Dennis Quackenbush and Eric Henderson are always the mainstays of the show; but this time I met Robert Vogel, whose business is Mr. Hollowpoint. Robert casts each bullet by hand from lead as pure as he can make it. His bullets mushroom on game perfectly and rip huge holes in living flesh, making the most humane kills possible. I bought a bag of 68-grain .308-caliber hollowpoints for the Quackenbush .308 test I’m conducting, and he threw in a second bag of .22 pellets for free. These will have a special debut in a smallbore test in the near future.


Robert Vogel (standing) is Mr. Hollowpoint. He has thousands of different bullets for big bore shooters to try.

But Mr. Hollowpoint wasn’t the only bullet maker at the show. Seth Rowland, the show’s host and promoter, also supplies the big bore airgunning community with cast bullets in numerous sizes and shapes. And their customers can hardly appreciate the untold hours they spend at the lead pot, casting and sizing these silver slugs one by one.


Need bullets? Seth Rowland has them in different sizes, shapes and weights.

10-meter guns
Another theme that’s common to all airgun shows is 10-meter target guns. This year’s Arkansas show had plenty of them, both from dealers like Scott Pilkington of Pilkington Competition Equipment in Tennessee, as well as numerous private individuals. I mentioned several weeks ago that Mac was bringing some recently overhauled FWB rifles to this show, and on day one an interested buyer sought him out. This man was serious about buying a target rifle, and he had done his research on the internet. But this was the first time he’d seen, felt and shot these rifles.

Mac took him out to the shooting range to try out an FWB 150 and a 300; and from his testing, he decided the 300 was the gun he wanted. Because it lacks the barrel jacket, it’s lighter than a standard 300S. He was buying the rifle for his wife to shoot in competition. They made a deal, and he went home with the exact target rifle he wanted — an overhauled ex-club rifle at a price that was several hundred dollars below what he would have paid for a gamble on the internet. For this man, driving all the way to Arkansas made good sense.

I’m sure that same scenario was played out numerous times at this show, because that’s what happens at an airgun show that also has a shooting range. You get to try out the guns before you buy — something that’s impossible at a regular gun show.

The odd and wonderful
You never know what you’re going to see at one of these shows, but there are a few people who always seem to have interesting things. Larry Hannusch, the top airgun writer for the past 30 years, is one person who can always surprise you. This year, our tables were together, giving me the opportunity to look at his guns more closely than normal. He had a Crosman 113 bulk-fill CO2 rifle, which isn’t unusual, except the owner of this one had inlet a pellet box into the right side of the stock — much like the patchbox found on certain muzzleloading rifles.


Some owner made this patchbox in the stock of his Crosman 113 bulk-fill rifle.


He built the “patchbox” with a built-in spring. There were pellets inside.


When was the last time you saw one of these? A French ball-flask pistol from the 1700s.

The big find
Often there will be a big find of some certain airgun that shows up at a particular show. I remember one year someone was selling piles of brand-new-in-the-box S&W 78G and 79G pistols. There were at least 50, but as my memory serves there might have been as many as 100 brand-new guns that were at least 20 years old at the time. Another year, it was Scott Pilkington who brought almost 300 club target guns for sale. You could buy an FWB 300 for $150-$200! Of course, it would have been a beater and would have needed to be resealed, but it certainly was the budget way into a 10-meter gun.

Then there was the year that someone had over 20 Johnson Target Guns, the submachinegun-looking plastic catapult BB gun from the late 1940s. They were all new in the box, and the cloth backstop that was in the box to stop the BBs inside the box lid that also served as a backstop had turned to dust. But they were complete. To collectors, they were a wonderful find. I actually saw two of these at this year’s Arkansas show; so even after more than 10 years, they’re still slowly dissolving into the collector population.


Two brand-new Johnson Target Guns in the box with all the literature and accessories.

When I walked into the second large room in this show and turned the corner, I ran into Randy Mitchell’s booth, where he was selling a pile of recently discovered TS45 sidelever air rifles for $20 each! I blogged this rifle several years ago, and Vince also wrote a guest blog about the same rifle. Until now, there were no new guns you could buy. You had to find one by chance and would always be one somebody had owned and possibly modified. Now, Randy Mitchell, who runs his Adventures in Airguns store, has a huge pile of these rifles to sell. They aren’t very safe and are the very guns that chopped off thumbs when their anti-beartraps failed; but if you cock them safely and load while restraining the sidelever, they’re fun to shoot and are often accurate.


Randy Mitchell found these old/new TS45 sidelevers and brought them to the show. It’s stuff like this that keeps me going to every airgun show I can make!

Collectibles
Of course, there are too many modern guns to name here, but know that at any show you’ll find almost every modern classic airgun for sale. If you’re looking for good TX200s or old R7s, they’re usually available — and they were at this show, too. But what you also see are airguns that are so rare and hard to find that some of them won’t even be seen in airgun books. This yearm Ingvar Alm had both a Winsel CO2 pistol in the box and a Giffard CO2 pistol from the 1870s on his table. Giffard invented the application of CO2 for gun use, and Winsel made only 50 guns in the early 1950s. Neither gun is represented well in any airgun book I know.


The Winsel pistol was a bulk-filled CO2 pistol that required the owner to mail his tank back to the company to be filled. Yeah, that’s going to work! They made 50 and quit. Today, they’re a prized collectible.


Giffard pioneered the use of CO2 in guns in the 1870s. His pistols are many times rarer than his rifles. The empty pop bottle is for contrast — like Cindy Crawford’s mole.

Big bores
There were more big bores at this show than I see at other shows. Perhaps, that’s because the focus of big bore airgunning seems to center around Texas, where the LASSO match is held. Dennis Quackenbush delivered his guns to eager buyers, but the only rifle he had to show was his own .308, which he doesn’t want to sell. Eric Henderson and Big Bore Bob Dean were both there with some guns to sell, as well as Robert Vogel. But the one maker with a lot of guns on display was Jack Haley, whose table was a rainbow of laminated stocks.


Jack Haley’s table was a colorful display of big bore rifles.

Oops!
Then there was the big bore that has been a joke in the airgun community for many years. The gun itself is fine. It was made back in the 1980s by Ben Patron, whose name is clearly on the side of the receiver. Somewhere along the line, some person got ahold of it and displayed it at the Springfield, Missouri, gun show as a “U.S. military .50-caliber sniper air rifle.” The label for that display was still inside the guitar box that held the gun, and Dennis Quackenbush remembers seeing it at the Springfield show. After that, it somehow ended up in an Arkansas pawn shop where Big Bore Bob found it and bought it.


Some previous owner had concocted a colorful background story for the Patron big bore of the 1980s.

The drawing
Many shows have a drawing, but airgun shows are so lightly attended that you actually have a chance of winning! This year, they gave away several very nice prizes at the close of the show, including a scoped TalonP pistol from AirForce! Then came the drawing for the frame-extended silencer for the Talon SS. I knew before the little girl picked my ticket that I would win it. How ironic is that? I’m testing a Talon SS with a bloop tube right now, so of course I’m going to win another one! But the supreme irony came when Randy Mitchell, a big bore hunter, won the .50-caliber Dragon Claw donated by Pyramyd Air.


Randy Mitchell (right) won the Dragon Claw. Show host, Seth Rowland, standing, ran the drawing. The young lady added a lot of sparkle and enthusiasm to the show. I see an airgunner in the making!

On the trip home, Mac and I relived the show many times. That’s another benefit. I can remember snippets from most past shows, and this one will now be filed away in the library.

Bulk-fill from 12-gram cartridges: Part 2

by B.B. Pelletier

Announcement: Guy Roush is this week’s winner of Pyramyd Air’s Big Shot of the Week on their facebook page. He’ll receive a $50 Pyramyd Air gift card.

Guy’s winning photo.  He says it’s a “great gun and very realistic feel!”

Part 1

Related reports.
Crosman 114 — Part 1
Crosman 114 — Part 2

This report is getting convoluted. I’m reporting a device I found at the 2011 Roanoke Airgun Expo that allows the use of 12-gram CO2 cartridges to fill Crosman bulk-fill guns, but I used the Crosman model 114 rifle that already had two reports from 2009 before it broke and had to be resealed. So, the report is really about how this bulk-fill device operates on a Crosman model 114 rifle, but the performance of the rifle is also being examined.

Confused? Well, I will try to keep it simple from this point. Today, we’ll look at the velocity you can expect from a Crosman 114 when it is filled by this device.


The Crosman 114 is a .22-caliber, single-shot rifle from the early 1950s. The new bulk-fill device allows you to shoot it with minimal additional equipment.

Mike Reames, the inventor of the device, told me the CO2 in a 12-gram cartridge would not transfer entirely to the gun, so I should expect some gas loss when I disconnected it. There was a loss of gas as he said, so one of the things I want to determine is how many shots can be expected when the gun is charged this way.

When the gas and liquid flows into the rifle during charging, the CO2 reservoir cools immediately. That’s caused by the liquid CO2 flashing to gas as it enters the reservoir. When it does, it absorbs some of the heat of its surroundings — in this case, the metal reservoir tube.

One way to maximize the fill is to cool the gun before filling. When the CO2 enters, it encounters cooler surroundings; and when it flashes to gas, the pressure of the gas is lower. Since the CO2 cartridge is warm in comparison, it’ll have higher pressure and will push more gas and liquid into the gun. This is an old bulk-fill trick that I’ll try to see what difference it makes — if any.

Velocity with a regular fill
First, I filled the rifle in the normal fashion (i.e., at room temperature). The first pellet I tried was the Crosman Premier. As I test the gun, you must keep in mind that Rick Willnecker, who resealed it, has a policy that he will only return a vintage airgun to its specified power. While there are other repair stations that will soup up the powerplant, you can expect Rick to repair the gun so it will shoot like it did when it was new.

Crosman Premiers averaged 535 f.p.s. The spread went from 531 to 539 f.p.s., so a tight 8 foot-second spread. I have owned one other 114 that shot the same pellet 15-20 f.p.s. faster, so this is well within the ballpark.

Next, I tried RWS Hobby pellets. They averaged 549 f.p.s., but that number isn’t a good one. Because after only three shots, I could see the power drop in the traditional fall-off that happens after all the CO2 liquid has turned to gas. So, the rifle had come to the end of its useful charge. You can look at it in several ways, depending on what you’re doing with the gun, but there were anywhere from 13 to 20 good shots on a fill. If you were just plinking, that might stretch to 30 shots.

The first three Hobbys went 563, 558 and 558 f.p.s., respectively. The next one dropped to 551, which is still okay; but after that, each successive shot went slower. After shooting the string of 10 Hobbys, I fired a Crosman Premier pellet and got 499 f.p.s., so the rifle is definitely off the power curve.

The fill from a 12-gram cartridge is from 20 to 30 good shots. Compare that to 50-70 good shots that you will get when the gun is filled by a large bulk tank. I’ve always used the 10-oz. Crosman tank, so that’s what I’m using to get this number.

Chill out
It’s time to chill the rifle and check the fill afterward. I placed the rifle in a chest freezer and left it in there for about an hour.

Let me caution you that what I am doing is considered dangerous if you don’t know what you’re doing. I know that the entire contents of a 12-gram CO2 cartridge cannot possibly overfill this rifle’s reservoir; but if I filled the chilled gun from a normal bulk tank, it could easily be overfilled. The consequences of overfilling an airgun like the 114 that has no pressure release device is that if the gun gets too warm, the gas pressure inside can build to the point that the brass reservoir blows apart in a catastrophic failure. That happens because the cold gun accepts too much liquid CO2; and when it warms up, the liquid has nowhere to go. The gun needs space for the liquid to become gas, to relieve the pressure, which is how it normally operates. If you fill at room temperature, the physical properties of CO2 will take care of stopping the fill at the right spot for you; but a chilled gun will continue to accept more liquid than it should.

However, in this case, the quantity of liquid inside a 12-gram cartridge is less than the gun is built to hold, so all that should happen is that more of the liquid goes into the reservoir. The test for that is to see how many good shots we then get from a fill.

After taking the rifle from the freezer, a layer of frost formed on all the metal parts. The fill was far more complete this time, with just a small puff of gas as the device was disconnected. However, the gun was now very cold and would not perform well until it returned to room temperature, so more waiting.

Two hours later, I shot strings with both Premiers and Hobbys. The first string of five Premiers averaged 515 f.p.s., and I thought something had gone wrong. It ranged from 498 to 522 f.p.s. But right after it, I shot the first string of five Hobbys and they averaged 570 f.p.s., which is where they should be. They ranged from 568 to 574 f.p.s. Next was the second string of five Premiers, which averaged 530 f.p.s., so they were now in the ballpark. The range went from 524 to 534 f.p.s. Then a second string of Hobbys averaged 567 f.p.s. with a range from 564 to 571 f.p.s. That’s the first 20 shots from the gun, and all are good except for a couple at the start.

Another string of five Premiers averaged 523 f.p.s., taking the total to 25 good shots on this fill. However, I could see the power tapering off within this string, which ranged from 519 to 528 f.p.s. From that point on, the velocity fell off in a straight line, which indicates the liquid is used up. So, filling this way extracts everything the CO2 cartridge has to give, which is about 25 good shots. If you were just plinking in the yard, there are probably 10 more useful shots in the gun.

The 114 action
When the Crosman 114 was selling new, I was still a kid who knew nothing about genuine bolt-action firearms. If I’d ever seen a 114 back then, I would have thought it was a conventional bolt-action because that’s what it looks like. However, it’s far from conventional.

A bolt-action firearm has lugs to engage the receiver and lock the bolt closed against the thousands of pounds of force the cartridge puts on it. The 114 bolt hasn’t got any lugs. Instead, a single metal stud engages an inclined plane at the rear of the action to push the bolt forward as the handle is turned down. At the front of the bolt, a hemispherical enlargement mates with a socket in the breech. Contact between these two metal surfaces, controlled by how hard the bolt is pushing forward, seals the breech against gas loss.


This 98 Mauser (firearm) bolt has two lugs at the front that pull the bolt forward and lock it to the receiver.


The 114 breech. There’s a lot to see in this picture. First, notice the enlarged bolt face that mates with the breech to seal gas behind the pellet. The pin on the rear of the bolt below the handle fits into a socket with an inclined plane to push the bolt forward tightly. The knurled wheel beneath the bolt is the power adjuster that all these bulk-fill guns have; and note the rear peep sight that I’ll use for the accuracy test.

Trigger
The 114 trigger is single-stage and quite hard in the factory form. That can be altered with careful gunsmithing, but nothing can ever make it a great trigger. The simple design mitigates against it.

The safety is a standard crossblock pin that’s set into the stock. Punch in from the left to put the rifle on safe and from the right for fire. Back in the ’50s, this was a very common type of safety on inexpensive guns.

What’s next?
Now that I know the characteristics of the gun and how many shots I can expect, it’s time to test accuracy. I’ll use the peep sight that came with the rifle for this.

As far as the bulk-fill adapter goes, I have to say that it has fulfilled all expectations. In fact, I’m surprised that it works as well as it does — especially when the gun is cooled first. I don’t know if Pyramyd Air will ever carry it. If you want one, contact Mike Reames directly.

Bulk-fill from 12-gram cartridges! Part 1

by B.B. Pelletier

If you’re a veteran CO2 user, the title of this report will confuse you, because bulk-filling and CO2 cartridges are two different ways of charging a CO2 gun. But, today, I’ll show you a device that lets you use a CO2 cartridge to bulk-fill a gun. And there’s a lot more to this story than just that!

Over two years ago, my good friend Mac traded or sold me a .22-caliber Crosman model 114 CO2 rifle — we can’t remember which. The rifle was in nice shape except that it didn’t hold gas, which is the kiss of death for a CO2 gun. No problem for me. I sent it off to Rick Willnecker in Pennsylvania to be resealed.

A couple weeks later, Rick called and asked if I would like to have the metal refinished, too. He said he had a friend who owed him a favor, and I could get the rifle refinished for nothing if I was willing to wait. I was in the middle of reporting on the gun at the time, but the work had stopped the report, so I figured why not? Little did I know that it would be two years before I would see this gun again.


Since the Crosman 114 was refinished, it looks like a new gun again.

If you’re interested in the first two parts of the report, they are linked below.

Crosman 114 — Part 1
Crosman 114 — Part 2

Back to today
Back to the main part of this story. At this year’s Roanoke Airgun Expo, I spotted a small device on Mike Reames’ table. It turned out to be a device that lets you charge a bulk-fill Crosman gun with a 12-gram CO2 cartridge. When I saw it I knew I had to report on it for you; and with the recent return of my now-refinished 114, I had the perfect test vehicle.


This device, made by Mike Reames, will attach to any fill port on a Crosman bulk-fill gun with an internal reservoir. It cannot be left on the gun when firing, though, because it will be hit by the pellet.


The bulk-fill device attaches to the rifle in the same way that the Crosman bulk tank did (read Parts 1 and 2 to see that).

Now that you have seen it you may be interested in where to get one of these. They run just over $30 with shipping, and I’m darned if I have the contact info for Mike. I thought I got it at the show, but a search has turned up nothing. However, I bet one of our readers has Mike’s info and can get it for us.

What is bulk-fill?
You probably know that most CO2 guns today rely on 12-gram or 88-gram cartridges to get their CO2. But it didn’t used to be that way. Back in the 1870s, Giffard of France made many CO2 guns that had a separate tank. When the gas ran out, you exchanged tanks; and they had it set up so you could mail them in.

Crosman made CO2 bulk guns starting is 1932 and continued building them until about 1955. Some of them had tanks that were separate, but others, like the 114 we are looking at today, had the reservoir built-in. In fact, when I initially had the idea for what turned out to be the Benjamin Discovery, I was thinking of a bulk-fill CO2 gun. When Crosman built the first prototype, they built it on the now-discontinued Crosman 2260 frame. Just the reservoir on the prototype was changed to hold the compressed air.

There have also been quite a few target rifles and pistols that operate on bulk CO2. For these, like the early Crosman guns, a separate bulk tank of CO2 is connected to the gun to fill it.

Back to this report. There was also a .177-caliber model 113 rifle that looks exactly like this .22-caliber 114. These were both single-shot, bolt-action guns that didn’t change substantially throughout the years they were manufactured, which was 1950-1955.

The 114 used to get around 70 good shots on one fill of gas when I filled it from a separate bulk tank. If you took the time to cool the gun before the fill, you could get even more shots than that.

A 12-gram CO2 cartridge doesn’t have that much gas inside it, plus some is lost when you make the transfer, so this isn’t the most economical method of filling the gun. It just lets you fill your guns without the need to own a bulk tank. Some people will like that, while others will complain that it’s costing too much to fill their guns. For them, I caution that what I’m showing today is not the best solution. However, if you’re like me and want to shoot your bulk Crosman guns occasionally, this is probably the most convenient way to do it.

Filling the gun
To fill the gun, simply attach the device to the fill port of the gun and insert a 12-gram cartridge. Screw down the top on the device, which pushes it onto the piercing pin and starts the gas flowing. With this device, there’s no way to stop the flow of gas; so when everything gets quiet, you know the gun has taken all the gas it will accept. If you dry-fire the gun one or two times at this point, you might get a denser fillbecause dry-firing lowers the temperature of the gun, causing more gas to flow.

Once the gun is filled, you just keep cocking and loading pellets and shooting until the power seems to go away. This is done by listening to the rifle’s report and is fairly easy to learn.

As far as shooting the 114, I was just about to get to that back in 2009 when the gun failed, and that’s where we are now. There’s a lot that needs to be tested on this rifle, but I’m going to end this tale right here. I’ll save the velocity testing, number of shots per fill, which in this case is also the same as the number of shots per cartridge, and accuracy for another day.

Crosman 116 CO2 pistol

by B.B. Pelletier

Today, we have a guest blogger. Paul Hudson has done other guest blogs for us; and true to form, he’s been very thorough. This blog is about the Crosman 116, which is a great vintage gun that’s the father of the Crosman 150. I’d say this is the ultimate test, as he tried 18 different pellets!

If you’d like to write a guest post for this blog, please email us.

Bloggers must be proficient in the simple html that Blogger software uses, know how to take clear photos and size them for the internet (if their post requires them), and they must use proper English. We’ll edit each submission, but we won’t work on any submission that contains gross misspellings and/or grammatical errors.

Take it away, Paul!

by Paul Hudson


In 1950, Crosman introduced a line of CO2 pistols and rifles that were filled by an external tank. The .22 cal. 116 model (6-in. barrel) shown above was one of them.

This guest blog could almost be labeled as “Part 2″ since B.B. did a very good review of the history and details of the Crosman 116 bulk-fill CO2 pistol. I had an opportunity to borrow a Crosman 116 from Jason, my brother-in-law. During the months I had it, I resealed it and did some testing. This 116 originally belonged to Jason’s grandfather, who used it for pest control. It was passed down through his father to him and has seen a lot of use over the years, but the bore is still in excellent condition. A few hours spent stripping and repainting would make the gun look almost new. It turned out to be a lot of fun shooting this old pistol; and with the right pellets, it’s surprisingly accurate as we’ll see later.

What sets this pistol apart from most other CO2 guns (and the reason I like it) is that it’s a bulk-fill gun. It doesn’t use the familiar Powerlets but is, instead, recharged using an external tank. The old Crosman 10-oz. tanks are still available, but many filling stations will not service them. However, with a simple adapter, you can charge these guns from a paintball tank that’s inexpensive to refill and will provide over a thousand shots.

Introduced in 1951 as a companion to the 8-in. barrel models, the .22 ca. 116 was produced in a time when American manufacturers could afford to put more hand work into making a gun. Most of the gun is made of brass to avoid rust. The breechblock and front sight are silver-soldered to the lower tube and fix the barrel in place. Overall, the pistol gives the impression of having been solidly built for years of service. All of the bulk-fill Crosmans were phased out after 1955 and were replaced by similar guns using the now-familiar Powerlets. The modern equivalent to the 116 is the 2240, which has the advantage of being modular and thus easily upgraded with a longer barrel, improved trigger, and many other parts.

At 23 oz., the 116 has a nice weight — heavy enough to be steady without being muzzle-heavy like the long-barrel models. A square front post and fairly wide rear notch are easy to use and work well at plinking ranges. The rear sight is adjustable for both windage and elevation and can be locked in place once adjusted.

Anyone who has used a 1377 or 1322 will immediately recognize the grips, trigger and safety of the 116 since they are identical to the 13xx models. The trigger-pull measures right at 5 lbs., but it feels far better than my 1377. There’s almost no detectable creep, and with a little practice it’s easily controlled.


Top wheel cocks the gun; bottom wheel adjusts the power.

The bolt is opened by rotating the upper knurled bolt handle and pulling back until the striker clicks. A pellet is then loaded into the breech. Push the bolt forward and rotate the handle into the locked position and you’re ready to go. Unlike my 1377, there’s no screw head in the breech area, and pellets almost never flip during loading. The longest available pellets load easily. Below the bolt handle is a power adjustment screw that controls the amount of tension on the striker spring. Backing the screw out reduces the tension and the velocity. It also conserves CO2.


Long pellets load easily and there is no screw hole to make them tip!

Shooting the 116
The 116 was shot at both full and reduced power. At full power, it gets about 30 to 35 shots per fill and is roughly as loud as a 1377 at six pumps. With the power adjuster three full turns out, it’ll get around 42 to 48 shots per fill and the pistol is noticeably quieter. For indoor shooting, this would be a real plus. At full power, the velocity spread was surprisingly low — never more than 11 fps and in several cases less than five. On low power, the spread was as much at 27 fps. With the lighter hammer blow, the valve is probably operating outside of its optimal range but accuracy didn’t seem to suffer. The temperature was around 80 degrees, and I took about 45 seconds between shots during all testing.

Velocity results
All pellets were tested at full power and some with the power adjuster three full turns out (the low column is on the right):

Pellet Weight FPS FtLbs ES Low FPS Low FtLbs Low ES
Beeman Crow Magnum 18.2 380 5.8 7 273 3.0 20
Beeman FTS 14.6 422 5.8 6 376 4.6 22
Beeman Laser 13.3 440 5.7 3 318 3.0 20
Crosman Premier Ultra Magnum 14.3 431 5.9 3 329 3.4 27
Crosman Premier HP 14.3 407 5.3 11
Eun Jin Domed 28.2 285 5.1 4
Gamo Hunter 15.3 402 5.5 3 360 4.4 14
Gamo Match 13.9 422 5.5 9 378 4.4 12
Gamo TS-22 22.0 340 5.7 8
Beeman H&N Match 13.6 430 5.6 8
JSB Exact RS 13.4 432 5.6 8 323 3.1 13
JSB Exact 15.9 382 5.2 7
JSB Predator 16.0 391 5.4 3 287 2.9 5
JSB Straton 16.0 397 5.6 10
RWS Hobby 11.9 474 5.9 6 376 3.7 22
RWS Super Dome 14.4 430 5.9 9 356 4.1 10
RWS Super-H-Point 14.4 410 5.4 10 294 2.8 17
RWS Super Point 14.4 413 5.5 5


A pistol scope really aids the accuracy of the 116.

New meets old
To get the best accuracy from the 116, a BSA 2×20 pistol scope was added using Crosman intermounts. With just the open sights, the best groups I could get were about 1″ at 10 meters. With the increased precision of a scope, several pellets grouped well under an inch at 10 meters, and 25-yard hits on soda cans were easy. None of the pellets performed poorly; most gave 5-shot groups in 1″ to 1.5″ at 10 meters. There were a couple of standouts, however.


RWS Hobby pellets were about average in the 116, giving groups like this 1.05-in. example


RWS Super H-Point pellets produced this nice .60-in. group.


Gamo Hunters matched the RWS hollowpoints with a .60-in. group.


Crosman Premiers gave the best group at 10 meters at .53 in.


At 25 yds., the Beeman FTS pellets grouped in 1.55 in. The scope definitely helps at this distance.

Where do you get one?
There are plenty of Crosman bulk-fill guns still around, and they can be found at most airgun shows and on the usual auction sites. The 116 is probably the most common of the pistols since .22 was the preferred caliber in the 1950s and the shorter guns are more handy. Expect to pay about $90-$100 for a working sample in good condition. Many of these guns have not been shot for many years and are in need of resealing. The parts are readily available, and there are people who will do the job for a reasonable cost. If you have one of these guns, there’s no reason to let it lie around. With new seals and regular use of Pellgunoil, they’ll give many years of service. It would be a shame to leave one of these fine, old airguns sitting in a box and gathering dust.

I’ve had a lot of fun shooting the 116. Part of the charm is getting a 55-year-old gun working again. The 116 is also more accurate than I expected. For short range at low power, they’re a real joy. Lots of shots with no pumping!

The Benjamin Katana on CO2

by B.B. Pelletier

Update on Tom/B.B.: Things are really popping at the hospital, as they make their final moves to send Tom home. We still don’t have a discharge date, but it appears to be imminent!

Today, we have a guest blog. Airgunner Paul has written for us before, and I think you’ll enjoy his foray into the world of bulk-fill CO2 with the Benjamin Katana. Summer’s here, and that’s the perfect time for using this gas.

If you’d like to write a guest post for this blog, please email us.

Bloggers must be proficient in the simple html, know how to take clear photos and size them for the internet (if their post requires them), and they must use proper English. We’ll edit each submission, but we won’t work on any submission that contains gross misspellings and/or grammatical errors.

Take it away, Paul!


The Benjamin Katana: Most people will run it on high-pressure air. After reading Paul’s blog, you might want to try your gun on CO2.

The Benjamin Katana is the fourth PCP rifle released by Crosman. It follows the Discovery, Challenger and Marauder. Of the three high-power rifles, the Katana happens to be my favorite: it’s more compact than the Marauder, it’s a single-shot, and it has a nicer trigger and stock than the Discovery.

B.B. has already gone into detail about the development and performance of the Katana in a previous posts. One nice feature of all the Crosman PCPs is that they’re dual-fuel — capable of using CO2 as the power source. There’s a distinct lack of information on how the rifles perform using CO2; most of what you can find is “many more shots using CO2.” Since it’s getting warmer, I thought this would be a good time for some testing.

I was primarily interested in determining three things:

  1. How many shots per fill does CO2 provide?
  2. What’s the performance loss with CO2?
  3. Is there any accuracy difference between using high pressure air and CO2?

Questions one and two are easy to answer. Question three is a mixed bag.

Why use CO2?
The Katana requires only 2,000 psi fill pressure and is easy to fill with a hand pump. Since it operates at a lower fill pressure than most PCP guns, you’ll get more fills from a 3,000 psi scuba tank than many other PCPs. So, why would someone shoot with CO2? Lots of reasons! Not everyone is physically able to use a hand pump. Pumping when the weather is hot and humid isn’t fun, either. Dive shops aren’t readily available in lots of areas, plus scuba tanks can be quite expensive. You could easily pay 2x the price of the Katana to buy a scuba tank along with all the fittings.

On the other hand a 20-oz. CO2 tank is very reasonably priced and can be refilled for five or six dollars. An adapter is required to connect the source tank to the Katana. The equipment to shoot the rifle with CO2 is much cheaper than the most inexpensive scuba tank, and you’ll have money left over for pellets and CO2 refills. For us incurable experimenters, it’s something new to test.

Filling the Katana
Before filling the Katana with CO2, all remaining air pressure must be exhausted. This can quickly be done through dry firing. When the tank is empty, cock the rifle to relieve any tension on the exhaust valve, put the safety on, connect the tank using the adapter and charge the rifle. As the CO2 will generate around 900 psi, you’ll use a different area of the pressure valve.


Since CO2 operates at a lower pressure than air, the Katana’s manometer includes a separate CO2-calibrated area. Here, the gun is full.

Shooting with CO2
With a good fill, the Katana will deliver around 60 shots at a very consistent velocity. A 20-oz. CO2 cylinder should be good for about 600 shots; this gives a nice, low per-shot cost. When the liquid CO2 has been consumed, the pressure gauge will fall to about halfway through the green CO2 area; and the velocity will drop 5-10 fps per shot for several shots and then really start to deteriorate. The Katana is also noticeably quieter using CO2 vs. compressed air. After refilling with a hand pump after every 25 shots, it’s nice to take 50 shots and have the pressure gauge not move at all!

Depending on the pellet, the velocity is anywhere from 18 to 27 percent lower using CO2. This still produces about 14 to 15 ft-lbs of muzzle energy, which is plenty for hunting within the appropriate limits. Heavier pellets tended to produce better muzzle energy than lighter ones.

The following table lists the velocities and extreme spreads (ES) with pellets that were tested with both compressed air and CO2. It’s interesting that the velocity spread for each pellet was very close between air and CO2. Pellets that have a low ES on air generally have a low ES on CO2.

Pellet Weight Air FPS Air FtLbs Air ES CO2 FPS CO2 FtLbs CO2 ES
Beeman Crow Magnum 18.2 781 24.7 11 625 15.8 8
Beeman FTS 14.6 848 23.3 12 645 13.5 10
Beeman Kodiak 21.1 720 24.3 8 594 16.5 8
Beeman Silver Arrow 17.1 776 22.9 11 646 15.9 4
Crosman Premier 14.3 854 23.2 11 666 14.1 9
Crosman Premier HP 14.3 855 23.2 14 665 14.0 13
Eun Jin Domed 28.4 613 23.7 6 491 15.2 5
Gamo Hunter 15.3 840 24.0 10 660 14.8 11
Gamo Match 13.9 865 23.1 9 638 12.6 10
Gamo Round Ball 15.4 810 22.4 16 602 12.4 10
H&N Match 13.6 870 22.9 10 642 12.5 10
JSB Exact RS 13.4 878 23.0 7 690 14.2 8
JSB Exact 15.9 815 23.5 8 659 15.3 5
JSB Exact Heavy 18.1 767 23.7 5 630 16.0 5
JSB Monster 25.4 655 24.2 6 539 16.4 15
JSB Predator 16.0 808 23.2 4 661 15.5 6
JSB Straton 15.8 821 23.7 17 671 15.8 4
RWS Hobby 11.9 900 21.4 14 680 12.2 17
RWS Meisterkugeln 14.0 878 24.0 16 665 13.8 6
RWS Super Dome 14.5 848 23.2 5 671 14.5 5
RWS Super-H-Point 14.2 845 22.5 2 674 14.3 7
RWS Super Point 14.5 842 22.8 17 670 14.5 12
Skenco Big Boy 26.2 656 25.0 5 539 16.9 6

Accuracy
With the right pellet, the Katana can be very accurate. A number of people have reported groups around a half-inch at 50 yards. I’ve been able to shoot several 5-shot, 0.60-inch groups at 50 yards with the Beeman Kodiak, Beeman FTS and JSB Monster pellets. In general, accuracy with an individual pellet was nearly identical for air and CO2. A few pellets were noticeably more accurate using CO2, and one was worse.


The 11.9-grain RWS Hobby is the only wadcutter that showed improved accuracy using CO2. The group size dropped from 2.19 inches on air (left) to 1.23 inches on the CO2 (right).


The 14.2-grain RWS Super-H-Point improved from 1.10 inches (air) to .75 inches (CO2). In both cases, this pellet tended to string horizontally.


The 15.8-grain JSB Straton pointed pellet produced a 2.00 inch group on the left using air and improved to 1.32 inches on the right using CO2.


The 18.2-grain Crow Magnum is the one pellet that performed markedly worse using CO2. Most of the holes in the CO2 target on the right showed evidence of the pellet tipping (keyholing); this is probably due to the reduced velocity.


Using CO2, the 25.4-grain JSB Monster pellet produces groups like this nice .45 inch sample.


The 21.1-grain Beeman Kodiak (H&N Barracuda) pellets repeated their winning behavior using CO2 and gave nice groups, like this .34 inch group (as long as I did my part).

Final comments on accuracy
At 25 yards, the following pellets all grouped in less than an inch: Beeman FTS, Beeman Kodiak, Eun Jin, Gamo Hunter, JSB Exact, JSB RS, JSB Exact Heavy, JSB Predator, JSB Monster and Skenco Big Boy. All gave nearly identical group sizes on both air and CO2.

At 50 yards, I couldn’t do better than about 1.25 inches with the Kodiaks. I assume this is due to the reduced velocity resulting in a longer flight time and reduced spin stabalization. It looks like CO2 will limit your effective range on small targets. On the other hand, hitting soft drink cans at 50 yards is still easy with the Kodiaks. A couple of other pellets were tried at this range, but all gave groups of 2 inches or more.

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