Posts Tagged ‘velocity test’
by Tom Gaylord, a.k.a. B.B. Pelletier
Just a word
Befoere I get started with today’s report, I want to say something about what happened this weekend. Friday’s airsoft report got a lot of comments. Among them are several questions about the technology of the guns. And some admissions that people didn’t think much of airsoft before they tried it, then they found their opinions changed drastically. That also happened to me, so I can relate to it.
But all you who don’t care for the subject don’t need to worry. This isn’t going to become an airsoft blog. I will continue to report on it at a low level, but I know this is an airgun blog, and that’s not going to change. I want to assure the readers for whom the subject of airsoft is not welcome that we are still going to talk about pellet guns and BBs guns for the most part. I will write a few reports on airsoft now and then, and I trust they won’t upset you too much.
Okay, that’s done. On to the topic of the day!
Today is our second look at the .22-caliber Octane combo from Umarex, and it’s velocity day. Before I get to that, there are a couple adjustments I wanted to make to the rifle. Let’s look at those now.
The first adjustment is the trigger. In the first report, I said the trigger is crisp but heavy. The adjustment screw adjusts only the length of the first-stage pull; so I adjusted it to be longer, and stage 2 decreased. Don’t go too far or the rifle will not cock at all because this adjustment does affect the area of sear contact.
I did go too far and had to call Umarex USA, where I learned that the Octane is supposed to come with a warning tag telling you not to turn in the adjustment screw more than one full turn. I went way past that, so all I had to do was turn the screw back out until the head stood even with the trigger blade — and the trigger was back to working again. For even greater contact, turn the screw so it stands proud of the trigger blade.
The second thing I wanted to adjust is the tension on the action forks because the barrel pivot was too loose. To do that, I normally take the barreled action out of the stock. But with this rifle, you need to be aware that the pins in the trigger are not held in and will fall out of the trigger if the action is tipped sideways. I didn’t know this, of course; and when the first pin fell out, it set me up for 45 minutes of work to get the trigger back together again. It seems that the trigger pins are held in place by the stock. Other airguns I’ve worked on have the same arrangement, and one solution is to put tape on one side of the trigger to hold the pins in place…and keep the trigger oriented straight up and down.
Each of the 6 free (not held by circlips or springs) trigger pins seen here is very loose in its hole and will fall out of the trigger if the gun is jostled or tipped to the side. They’re held in place by the stock. What appears to be a pin at the far right is actually a rivet.
Better still — what you can do (VERY CAREFULLY!) is remove both forearm screws and just LOOSEN the rear screw behind the triggerguard. Then the front of the action can be tipped up clear of the stock far enough to tighten the barrel pivot bolt and nut. I would advise against taking the action completely out of the stock. If you do, know how loose the trigger pins are and treat the rifle accordingly. When the pins fall out, the internal trigger parts start moving around. They’re fairly easy to align with their pin holes, except for the safety that takes a little fiddling since it’s a 2-piece assembly with an internal pivot. My advice is to leave the gun in the stock.
One final tip. When you tighten the stock screws, don’t tighten the rear stock screw (the one behind the triggerguard) too much or the trigger won’t function. It was not tight when I first took the action out of the stock; and I found that if I tightened it too much, the trigger would not work. Umarex told me the screw shouldn’t affect the trigger at all, but I’m just reporting on the behavior of my test rifle.
Now, let’s look at the velocity of the Octane. I’ve selected 3 popular lead pellets and one lead-free pellet.
JSB Exact Jumbo
The first pellet I tested was the 15.9-grain JSB Exact Jumbo. This is a popular and very accurate pellet in many airguns, and I think it may be accurate in the Octane. This pellet averaged 762 f.p.s. in the Octane. The low was 748 f.p.s., and the high was 787 f.p.s.; so the spread was 39 f.p.s. At the average velocity, this pellet produced 20.51 foot-pounds of muzzle energy.
This pellet loaded easily, perhaps too easily. I think it might be a little undersized for the Octane’s breech. That could affect the accuracy. We’ll see.
The RWS Hobby pellet weighs 11.9 grains in .22 caliber and is very tight in the Octane’s breech. It averaged 889 f.p.s. in the rifle with a low of 867 and a high of 902 f.p.s. So the spread was 35 f.p.s. At the average velocity, this pellet produces 20.89 foot-pounds of energy at the muzzle.
I don’t know how Hobbys will do in the Octane, but I suspect they’ll do well because of the tight fit in the bore. Of course, the Hobby is a wadcutter, so accuracy will fall off after about 25 yards.
The .22-caliber Beeman Kodiak dome weighs 21.14 grains, which makes it a very heavy pellet. In the Octane, Kodiaks averaged 682 f.p.s. with a range from 665 to 691 f.p.s. That’s a total spread of 26 f.p.s. At the maximum velocity, the Kodiak produces 21.84 foot-pounds at the muzzle.
My guess is that the Kodiak pellet might also be a good one for the Octane. If so, that’s great because it also produces the most energy of all the lead pellets tested.
Okay, the name of the game with pellet rifles these days is speed, and the RWS HyperMAX lead-free pellet at 9.9 grains is the way to get it. In the Octane, they averaged 1029 f.p.s. with a spread from 1022 to 1075 f.p.s. That’s a spread of 53 f.p.s., so the rifle is probably still burning a lot of fuel. At the average velocity, the HyperMAX pellet produced 23.28 foot-pounds of energy at the muzzle.
The HyperMAX pellet fit the breech very loosely. That’s probably where the extra velocity spread came from, as more dieseling was generated by less pellet resistance. I doubt this pellet will do very well in the Octane because of the loose fit.
The rifle recoils noticeably in both directions, but there’s no vibration, whatsoever. Nearly all rifles with gas springs have a sharp buzz that hits you in the cheek, but the Octane doesn’t. In fact, aside from the recoil, it’s a very smooth-shooting spring rifle.
Remember that I had to adjust the trigger for a very definite stage-2 let-off. That affected the trigger-pull a lot. I was able to adjust it back to a release of 7 lbs., 14 oz. with very little creep. It’s heavy, as I noted before, but I think it’s crisp enough to do good work. We shall soon see!
The Octane IS NOT LOUD!
When I first tested the rifle it was very loud. And the sound persisted for longer than I felt the dieseling of a new airgun would last. But during this test the rifle suddenly became MUCH quieter. Obviously, it had been dieseling and I didn’t know it.
I originally told Edith it was a 3.7 on the sound scale when I tested it, and she adjusted the loudness level on Pyramyd Air’s product page to 4. But now she can hear that the Octane is clearly a 3. I apologize to everyone who was mislead by my earlier report. The Octane is a normal-sounding breakbarrel air rifle.
Observations thus far.
I said in Part 1 that the Octane holds very well in the hands. The weight is biased forward toward the muzzle, and the stock is slender when the off hand rests. Add the smooth shooting to this, and I think the Octane might surprise us in the accuracy test.
I plan on shooting the rifle at 10 meters with its open sights first. That should give us an idea of which pellets it likes. Then, I’ll mount the scope and shoot those best pellets at 10 meters, again. That does 2 things. First, it confirms the pellets are as good as we think; and second, it allows me time to adjust the scope for the second accuracy test at 25 yards.
by Tom Gaylord, a.k.a. B.B. Pelletier
Let’s look at the velocity of the Tanfolglio Gold Custom CO2 blowback airsoft kit gun. When I started the test, I discovered something unusual. The CO2 cartridge I’d loaded last week to test the gun initially had leaked down completely. That usually doesn’t happen until several months have passed, so it got me wondering. I’ll watch the gun and see if it happens again. I left the test today with a 75 percent filled cartridge; so if I test it again in a week and it’s out, I’ll know. And to answer your question, yes, I did use Crosman Pellgunoil on the tip of each fresh cartridge when I installed it.
Testing the velocity of an airsoft gun is a little different than testing a pellet gun. It’s more like testing a BB gun because the airsoft BBs come in specific weights. The velocities tend to conform to the weights rather than to the individual brands of BBs used. I’ll test the pistol today with the 4 most popular weights — 0.12 grams, 0.20 grams, 0.25 grams and 0.28 grams. And let’s get something straight right now. When we’re talking about airsoft BBs, we’re speaking in terms of GRAMS — not grains. There are about 454 grams in a pound, but 7,000 GRAINS per pound. So a gram is MUCH heavier than a grain. A gram is a decimal unit of the metric system. It’s one-thousandth of a kilogram. A grain is an apothecary (medical) weight from the old English system of weights — a system that is also used by jewelers. It was historically the weight of one barley seed, but has been standardized to one seven-thousandth of a pound.
Regardless of the weight of each BB, they’re all the same size. Their weight is controlled by the material used to make them.
UHC Precision Ground BBs, 0.12 grams
First up are 0.12-gram (1.85 grains) UHC BBs. They averaged 417 f.p.s. in the Tanfoglio pistol. The range went from a low of 406 to a high of 425 f.p.s. That’s slightly slower than the maximum advertised veloicity of 453 f.p.s for this pistol. At the average velocity they produce 0.71-foot-pounds of energy at the muzzle. Given the design goals of airsoft, that’s fine, because much more than that will start to injure anyone hit by them.
Air Venturi Pro CQBBs, 0.20 grams
Next up were Air Venturi Pro CQBBs 0.20-gram (3.09 grains) BBs. These are value-priced BBs that come in bottles of 2,700 rounds, 5,000 rounds and, for the serious shooter, supersized bags of 125,000!
These averaged 333 f.p.s. with a spread from 315 to 346 f.p.s. This is the recommended BB weight for this pistol, which means it will probably be the easiest one to tune the BAXS (the trajectory adjustment in the pistol) with. At the average velocity, this BB produced 0.76 foot-pounds of muzzle energy. I have other brands of 0.20-gram BBs, including competition BBs; so if this weight turns out to work well in the gun, I plan to give it the biggest test. As a final note, the velocity was right where the specs say it should be (320-350 f.p.s.).
Air Venturi Pro CQBBs, 0.25 grams
This 0.25-gram (3.86 grains) BB is a little heavier than the recommended weight, but sometimes that doesn’t hurt the accuracy at all. With the right BBs, it can enhance it — and this is where having several different brands of premium airsoft BBs is an advantage. I tested velocity with the Air Venturi Pro CQBBs 0.25-gram BB that’s the equivalent of the 0.20-gram BB mentioned above, but heavier. It comes packaged the same way, and I have the 2,700 BB bottle for the test.
These BBs averaged 296 f.p.s. in the Tanfoglio pistol. The range went from 282 to 304 f.p.s. At the average velocity, this BB produced 0.75 foot-pounds of muzzle energy.
TSD Tactical, 0.28 gram BBs
The last BB I tried was the TSD Tactical 0.28-gram (4.32 grains) BBs. These are clearly too heavy for this gun, but they did produce velocity very close to the 0.25-gram BBs. The average was 289 f.p.s., with a spread from 274 to 302 f.p.s. At the average velocity, this BB developed 0.80 foot-pounds of energy at the muzzle.
Loading the magazine
I don’t have a speedloader, so I loaded each BB one-by-one into the double-stack magazine. They have to be pressed through the top of the magazine, which then holds them against falling out while the gun is operating. That’s the sign of a quality airsoft gun. If you remove the loaded mag for any reason, a BB doesn’t fall out of the mag as it often does on lower-priced gas guns and most spring guns and auto-electric guns (AEGs).
I also note the BBs instantly arranged themselves within the mag…and without any fuss. With lesser guns, the BB stack will have gaps on one side that lead to misfeeds.
Stopping the BBs
Nothing rebounds worse than a plastic airsoft BB. Nothing! Those of you who know airsoft probably wonder how I managed to stop the BBs in the velocity tes. When I tell you that I stopped 100 percent of more than 60 BBs fired, you need to know how I did it! I used a UTG Accushot Pellet and BB trap, and in front of that I placed a heavy cardboard sheet at a slight angle of perhaps 15 degrees to the face of the trap. The trap and cardboard both stood in a shallow cardboard tray that caught all BBs that came back out of the trap. It worked so well that I will use it when I conduct the accuracy test.
I proclaimed how much I love the Tanfoglio trigger in Part 1. Now let me tell you the specs. It’s single-stage, with the blade moving through an arc that can be felt, and it breaks cleanly at 2 lbs., 9 oz., which is even lighter than the trigger on my Wilson Combat CQB 1911 firearm. This is a pistol trigger to die for! The only criticism is that it doesn’t break like a glass rod; but since the gun is for action shooting and not bullseye targets, that doesn’t matter.
I got exactly 40 shots before the gun began slowing down. After that, there were another 10 good shots before the blowback function came into question. I guess a lot of the CO2 is used for blowback. Since this is a competition gun, that makes no difference. Winners will buy it and use it, no matter what it takes to make it work. This is not a budget plinker. It’s a full-blown competition airgun!
I hope this pistol will be a real tackdriver because that would make it perfect. I know that it’s not a target gun, but it does have to place its shots in the same place to score high in the competitions it would enter. If it does — well, I don’t know that I will let it go back!
by Tom Gaylord, a.k.a. B.B. Pelletier
Today, we’ll test the velocity of the .177-caliber Crosman MTR77NP scoped air rifle. This rifle has a Nitro Piston, which is Crosman’s gas spring, so it should be interesting. The advertised velocity is 1,200 f.p.s., which we must assume is with a lightweight, lead-free pellet.
Blog reader John asked me if the front sight base is on tight or does if it rotates around the barrel. The one on this rifle is firmly in place, but I thought it would be good to show you how the front sight base is attached to the rifle. It’s part of a synthetic sleeve that goes over the end of the barrel, and I assume it’s held in place by epoxy. That would be the most cost-effective method of doing it. John mentioned the possibility of a splined barrel and jacket, but that has a number of problems. It involves extra manufacturing steps (the cutting of the splines); plus, it runs the risk of being installed in a not-perfectly-straight orientation that would cause a lot of problems with sales and returns. Epoxy has none of those problems and costs very little.
The advertised cocking effort is 45 lbs. The test rifle cocks with 42 lbs. of effort as measured on my bathroom scale.
Crosman Premier heavy
The first pellet I tested was the 10.5-grain Crosman Premier heavy. Because this rifle comes in .177 caliber, I had a choice between these and the lighter 7.9-grain Premier lites. I chose the heavier pellets because of the rifle’s power potential; but as you’ll now see, that wasn’t necessary.
Premier heavys averaged 675 f.p.s. through this rifle. The first measured shot from the gun went 705 f.p.s.; but after that, nothing went faster than 681 f.p.s. with this pellet. I threw out the first shot and ran the string from the second shot forward. The high was 681 f.p.s., which happened at the beginning and near the end of the string. The low was 665 f.p.s on the final shot. The spread of shots in this string is 16 f.p.s. At the average velocity, this pellet produces 10.63 foot-pounds of muzzle energy.
Next, I tested the RWS Hobby pellet that’s used for all legitimate velocity comparisons. It’s not a super-lightweight pellet and is made of pure lead, so the lubricity in the bore is what you want in a diabolo pellet. In the test rifle, Hobbys averaged 866 f.p.s., which is a good velocity for accuracy but a little slow for a rifle that hopes to see 1,200 f.p.s. with super-lightweight pellets.
The spread for this pellet ranged from a low of 856 to a high of 872 f.p.s., for a spread of 16 f.p.s. At the average velocity, Hobbys produced 11.66 foot-pounds of energy.
I tested the H&N Baracuda Match next. Normally, a rifle shooting this slow would be considered too weak for Baracudas, but I thought their all-lead content might speed them ahead of the Premier Heavys that are hardened with antimony. And it did! In spite of being 1.15 grains heavier than the Premiers, Baracuda Match pellets averaged 685 f.p.s., which is 10 f.p.s. faster. The range went from 677 to 692 f.p.s., for a total spread of 14 f.p.s.
I think this pellet might surprise us with its accuracy. I certainly intend to include it in the test.
Crosman SSP hollowpoint
The final pellet I tested was the lead-free, super-lightweight Crosman SSP hollowpoint. If anything is going to go 1,200 f.p.s in this rifle, it’s this 4-grain pellet.
They averaged 1094 f.p.s. in the test rifle, but the velocity spread was huge! The slowest pellet went 1018 f.p.s., while the fastest went 1142 f.p.s. That’s a spread of 124 f.p.s. After seeing how this pellet did for accuracy in the Fusion, I’m temped not to test it in the MTR77NP; but if I do a 10-meter test to start with, I could risk it.
Now that I’ve had some more time to assess it, I can make a better report on the MTR77NP’s trigger. It’s a 2-stage pull that feels more like a single-stage pull that has some slack before it engages. Stage 2 is very long and has some creep, but not a lot. For you newer readers, trigger travel is when you can feel the blade move and creep is when it stops and starts (is gritty or jerky) throughout the movement. Movement by itself isn’t bad; but with too much creep, you never know what’s happening. The MTR77NP trigger is not too creepy for good trigger control.
Evaluation thus far
I remain optimistic about the MTR77NP. I like the fact that the velocity is not over the top. Perhaps that explains the slightly easier cocking effort of the test rifle. Whatever it is, it fits my idea of what an air rifle should be.
I’m not a fan of gas springs, but there have been a couple I really liked. The Benjamin Legacy and the Benjamin Trail NP with lower velocity are 2 rifles that satisfied my criterion for what a decent air rifle should have and be able to do. Will the NTR77NP follow in their footsteps? We shall see.
by Tom Gaylord, a.k.a. B.B. Pelletier
This is the second look at the brand-new TX200 Mark III that Pyramyd Air sent to me for this test. We’ve been looking at my older TX200 Mark III until recently, but now we’re looking at the gun that comes when you order it today. Over 40,000 TX200 air rifles have been sold since the model was first introduced in the late 1980s, and today’s version is probably the best of all.
Today’s look will be a traditional Part 2 velocity check because that’s one of the things you readers have been asking about for many years. I keep telling you that the rifle comes out of the box shooting slower than it’s rated; but as it breaks in, the velocity continues to climb. Today, we get to really look at the gun right out of the box. I’ve purposely held off shooting the rifle more than just a few shots, so this test can be as accurate as possible. Here it goes.
The TX200 Mark III is rated to shoot 930 f.p.s. in the .177 caliber we’re testing. That’s not an advertiser’s claim. That’s based on my testing the guns over the past 20 years. And it’s also not with lead-free, lightweight pellets. It’s with Crosman Premier 7.9-grain lites. In other words, 930 f.p.s. or more is what you can expect from your TX200 with Premier lites, as long as it remains original. But it doesn’t start out that fast. It’s been my experience with TX200s that they start out shooting Premier lites around 875-890 f.p.s. I’ve written these words before doing any testing of today’s gun, so I’m going to find out what actually happens right along with you.
Crosman Premier lites
Well, shut my mouth! Imagine my surprise when the first Premier lite came out of this new rifle at 936 f.p.s.! Boy, was I off the mark on this one!
The first 10 Crosman Premier lites averaged 926 f.p.s. The spread was broad for a TX — from a low of 917 to a high of 936 f.p.s. That’s 19 f.p.s. difference across 10 shots. And there was a smell of burning oil in the room, so I know combustion had something to do with both the higher velocity and the larger spread. At the average velocity this pellet produces 15.05 foot-pounds of muzzle energy.
H&N Baracuda Match
Next, I tried H&N Baracuda Match pellets. They weigh 10.65 grains, making them a heavy pellet in .177 caliber. They averaged 830 f.p.s. in the test rifle, with a spread from 821 to 835 f.p.s. At the average velocity, this pellet produces an average 16.30 foot-pounds of energy at the muzzle. That’s uncharacteristic of a spring rifle — when a heavier pellet produces more power than a lighter one. But that’s what this rifle did.
Whenever airgun manufacturers wanted to show how fast their guns were in the days before lightweight lead-free pellets, they invariably tested them with RWS Hobbys. At just 7 grains, this wadcutter is one of the lightest lead pellets around and should give the highest practical velocity the rifle is capable of.
Hobbys averaged 1011 f.p.s., with a low of 1000 and a high of 1022 f.p.s. Right there you have proof that Air Arms is being very conservative in their velocity estimates. At the average velocity, Hobbys produced 15.89 foot-pounds of energy at the muzzle.
This TX is shooting much faster than I anticipated. It’s doing essentially its advertised velocity right out of the box — with Crosman Premier lites! What will happen as it breaks in? My thinking is that it will continue to get faster like the other rifles I’ve seen, but this one may not get that much faster. It may be closer right now to where it will end up after 10,000 shots have gone through it. My well-broken-in TX now averages 963 f.p.s. with Crosman Premier lites. It started out around 875 out of the box. I think this one will eventually be just as fast, but not proportionally faster.
I mentioned some noise when cocking the rifle in the first report. That has already begun to decrease with just the few shots in this test. I think it may disappear entirely in a few hundred more shots.
The cocking effort is at 34 lbs. right now, but I can feel some stiffness in the linkage. I think that’s going to smooth out and drop by several pounds over time.
Of course, the TX trigger is extremely adjustable, so this is just a measurement of how it came from the box. In the next installment, I’ll discuss adjusting the trigger in great detail.
The trigger breaks crisply at 1 lb., 12 oz. as it’s currently set. That’s 28 oz. It feels heavier than the trigger on my TX, which it should, since mine is releasing at just 9 oz., or roughly one-third the weight of this one. The point is that when it comes to triggers, TX200s are so refined that almost no other sporting spring airgun has a trigger in the same category.
Observations thus far
So far, the new TX is performing pretty much as expected, with the exception of shooting way faster than anticipated. Everything else is right on the money, so I know the elves at Air Arms are still making these airgun the same old way — which is very good.
I have a couple of other experiments planned for the TX after the final accuracy test, and I was going to go back to my own rifle after I tested this one for accuracy; maybe I should do them all with this one. One test was requested by blog reader Mannish from Mumbai, who asked me how dot sights do on springers. I had planned on testing that on a TX, so perhaps I might use this one. Blog reader duskwight wondered if the group size will change when switching your scope from 4x to 16x. I’d planned on testing that at 50 yards with a TX; and with that particular test, we’ll get a bonus — seeing if the point of impact changes as the power changes. Good stuff!
But the trigger adjustment is next.
by Tom Gaylord, a.k.a. B.B. Pelletier
Umarex Fusion CO2 rifle
Today, we test the Umarex Fusion CO2 rifle for velocity and several other things you readers are interested in. You may remember that in the first part I had a problem with the rifle not sealing when I loaded the CO2 cartridges. Blog reader mikeiniowa nailed the problem with the Fusion CO2 cap. The part that contains the piercing pin was partially unscrewed and was, therefore, longer than it should be. It was piercing the cartridges before the o-ring was in position to seal the gun. So, a lot of gas leaked out; and, because the o-ring absorbs CO2 and swells when it does, it also prevented the cap from being screwed down tight.
I’m going to show that cap in detail in a later report. It’s made so complex because of the material the o-ring is made from. If a different material had been used, none of the complex parts would be needed…and the cap could be made for less cost.
So, with the cap assembled correctly, I was able to load 2 fresh CO2 cartridges. This time, everything worked as it should, and the velocity test began.
JSB Exact RS
The first pellet I tried was the 7.3-grain JSB Exact RS. This lightweight dome is a winner in many lower-powered air rifles, and I believe the Fusion will be one of them. The first shots started slow, at 619, 647 and 644 f.p.s. Then, the velocity jumped up to 663 and remained above that number for the remainder of the string. The average, once the velocity was in the curve, was 667 f.p.s. That means the Fusion’s valve needs to be awakened after installing fresh cartridges.
The low velocity, once the pellet had climbed into the stable spread, was 663 f.p.s., and the high was 673 f.p.s. At the average velocity, the RS pellet produced 7.21 foot-pounds of muzzle energy. Because the Fusion is a gas gun, we can expect the power to increase and decrease with the pellet weight.
I tested the same pellet several hours later, and the first JSB RS out the spout went 686 f.p.s., so the velocity had increased by 20 f.p.s. after 40 shots had been fired and the gun then rested for 3 hours. But that was also the end of the power curve. By shot 50, the velocity of all the pellets started to drop again.
The second pellet I tried was the 7-grain RWS Hobby wadcutter. They averaged 669 f.p.s. with a spread from 661 to 681 f.p.s. At the average velocity, this pellet generated 6.96 foot-pounds of energy at the muzzle. Lighter pellet, less energy.
Crosman SSP hollowpoints
The third pellet I tested was the Crosman SSP hollowpoint. Remember, Umarex lists the velocity of the Fusion at 750 f.p.s. with lead-free pellets (which they call alloy) and 700 f.p.s. with lead pellets. I should have tested the rifle with RWS HyperMAX since those are the ones Umarex imports and distributes, but I didn’t have any on hand. Anyway, the Crosman pellets worked fine. They gave an average 766 f.p.s. velocity, with a low of 757 and a high of 783 f.p.s. At the average velocity, this 4-grain pellet produced 5.21 foot-pounds of muzzle energy, so it’s staying on track for the pellet-weight-to-velocity relationship.
After 50 shots had been fired, the average velocity for this pellet fell to 711 f.p.s. So, the velocity is going down, but the velocity is still useable up to 60 shots.
The last pellet I tried was the 10.6-grain H&N Baracuda Match. In a spring gun, the velocity for this pellet would fall off quite a bit from the numbers for these lightweight pellets, but gas guns and pneumatics are different. Heavy pellets don’t lose nearly as much velocity as they do in spring guns. The average for Baracudas was 612 f.p.s. The range went from 600 to 616 f.p.s. At the average velocity, the Baracuda produced 8.82 foot-pounds, which is significantly higher than any other pellet.
One of our readers mentioned that the total number of good shots he gets is about 70 shots with each set of CO2 cartridges. I was looking for about that number. I noticed the velocity began dropping at shot 50. But there were still 10 more good shots in the gun. From shots 56 through 60, the velocity for the baseline JSB Exact RS pellets was 622, 614, 603, 602, and 584 f.p.s. While there were still more shots to be fired, I felt that accuracy would probably drop off at this point. So, I’ll rate the Fusion I’m testing as a 60-shot gun.
And, now, we come to the question on everyone’s mind. Is the Fusion quiet? Umarex not only says that it is, they tout the low sound level heavily in their advertising campaigns. While I don’t have any scientific sound measurement equipment to test with, I can make a fairly good subjective observation of the gun’s report. I compared it to my Diana model 23, which most of you readers know to be a very small, low-powered spring-piston youth model air gun. The Fusion and the Diana 23 are approximately the same loudness. That means that the Fusion is a very quiet air rifle.
Blog reader Matt61 wondered if it would be louder than a ballpoint pen falling on a thick carpet, and I must say that it is. But it isn’t much louder. I think this is a gun you could shoot in an apartment that has thin walls separating you from the neighbors. You should be able to shoot in even small backyards without disturbing the neighborhood.
I told you the trigger is 2-stage. Stage 1 is light and relatively short. Stage 2 is also light but long and creepy. The sear releases at around 3 lbs., 12 oz.
Besides the accuracy test, which is expected, I also want to take the gun out of its stock and look for both the power adjuster and the trigger adjustment that reader mikeiniowa mentioned. I’ll use that report to also show you the details of the CO2 cap and explain how it works so you understand what’s going on.
Given the power level of the Fusion, I think I’ll start testing accuracy at 10 meters and then back up to 25 yards. If the rifle comes through the accuracy portion with honors, I’ll give it a hearty recommendation.
by Tom Gaylord, a.k.a. B.B. Pelletier
Let’s look at the power and velocity of my TX200 Mark III. You must bear in mind that my rifle is 13 years old and has been thoroughly broken-in. A new rifle will be much slower for the first thousand shots, or so.
Several readers mentioned how difficult it is to load the TX200 and other spring guns that have sliding compression chambers. I don’t find it difficult at all, and it’s not the size of your fingers that’s at fault. It’s your approach to loading. To load the TX, the muzzle needs to be pointed up. Not straight up, but close to it. The base of the pellet is then held between the thumb and index finger as it’s inserted into the loading port (not the breech, yet — just the loading port). I find the loading port is more than large enough for most hands.
Once you get the pellet inside the loading port, you need to use some technique. The trick to loading any airgun with a sliding compression chamber is to not try to insert the pellet directly into the breech on the first try. Instead, let the pellet connect with the breech face sideways, then move it around with thumb pressure until you feel the head pop into the breech. That helps straighten out the pellet so it can then be pushed into the barrel. Obviously, domed pellets load the easiest this way and wadcutters are the hardest. It takes a minute to read how to do it and about 2 seconds to actually do it!
Loading this way is not done by sight, but by feel. Once you get the hang of it, you’ll load the rifle so fast that you’ll forget about how “hard” it’s supposed to be. Then, it won’t bother you if the scope’s objective bell hangs over the loading port because you’ll be doing everything by feel.
I measured the effort needed to cock my rifle. For most of the underlever’s stroke it took 32 lbs. of force, but there was one spike that rose to 34 lbs. near the first click of the sliding chamber catch.
The first pellet I tested was the 7.9-grain Crosman Premier lite. The specs say this rifle has 930 f.p.s. velocity; but with these Premiers lites, my rifle averaged 963 f.p.s. The low was 958 and the high was 970 f.p.s. My TX200 has always liked Premier lites, so I guess this shouldn’t come as a surprise…but it does.
At the average velocity, this pellet produces 16.27 foot-pounds of energy at the muzzle. As I recall, it was launching this pellet at around 875 f.p.s. when it was brand new, so this is quite an increase. The total velocity spread with this pellet was 12 f.p.s., which is pretty tight for a springer.
Next up were the Beeman Kodiak Hollowpoints. These weigh 10.34 grains and qualify as heavyweights in .177 caliber. They averaged 818 f.p.s. for 10 shots, with a low of 810 and a high of 836 f.p.s. That’s a 26 f.p.s spread, which is a little on the high side for a spring gun in good condition.
At the average velocity, the Kodiak Hollowpoint produced 15.37 foot-pounds of muzzle energy. I noticed that the heads of these pellets fit the chamber very tight, so I’m writing a note to myself to try them in the Fast Deer rifle the next time I test it.
The last pellet I tested was the Predator Polymag. At 8 grains, it weighs close to what the Premier lite weighs, but the Polymag is a pure lead pellet with a plastic tip, so the performance should be different. Many shooters feel this is a very accurate pellets, so I thought it would be good to test it in a rifle that’s known to be accurate.
Predators averages 916 f.p.s. in the TX200, but the velocity spread was large. It ranged from a low of 887 to a high of 936 f.p.s. That’s a total of 49 f.p.s. The second-slowest shot went 909 f.p.s., by the way. That would have tightened the spread to 27 f.p.s. At the average velocity, the Polymag puts out 14.91 foot-pounds of energy at the muzzle.
I adjusted the TX trigger many years ago. So many years, in fact, that I don’t remember when I did it. The 2-stage trigger now releases at 9 oz. on my electronic scale. Since the first-stage take-up is more than 7 of those ounces, this trigger feels really light!
That’s the performance of my TX200 Mark III. If any of you own newer Mark IIIs and have chronographs, I’d appreciate hearing how fast your guns shoot.
The next step will be to mount a scope on the rifle and sight it in. I think I’m going to slow down the report and document that procedure very carefully, so newer readers have a reference on mounting a scope and sighting-in. That will make Part 4 the first accuracy test.
by Tom Gaylord, a.k.a. B.B. Pelletier
We’re back to the BSA Scorpion 1200 SE. My hand has finally healed, and I can now work the Hill hand pump, but I stopped part of the way through the first fill and made the necessary changes to the carbon fiber tank hose, to attach BSA’s proprietary fill probe. I gave up because I just got tired of pumping! Those who encouraged me to do this from the beginning have won me over, I guess.
This PCP rifle takes a fill to 232 bar, which is 3,365 psi. We’ve looked at fill pressures for pneumatics a lot over the past month, and today we’ll see what this BSA rifle manages to do with its fill. The advertised number of shots is 25 per fill.
Because of the power potential of this rifle, I switched my backstop to the tough one blog reader Jim Contos made for me. If you want to read about this fine homemade quiet pellet trap that’s strong enough to stop the most powerful smallbore air rifle, here’s the link.
Familiarization with the magazine
After 10 minutes of trying (and failing) to load the 10-round spring-loaded magazine, I was prepared to blast BSA for creating a magazine that’s impossible to load. What we had, instead, was a B.B. who refused to learn new ways. The magazine loads easily once you do it the right way! I took a photo of the correct hold, so you won’t have the problems I did. Hold it like this and realize that BSA has designed this mag so the last pellet loaded holds the spring-tensioned drum in place until you’re ready to load the next pellet, and everything will be fine.
The magazine accepted all 3 of the pellets used in this test without a problem. They’re among the heaviest and longest .22-caliber pellets on the market, so I think you’ll be satisfied no matter what you try to shoot.
Pellet 1 — JSB Exact Heavy and the shot count
The 18.1-grain JSB Exact Jumbo Heavy pellet averaged 883 f.p.s. in the rifle. The velocity ranged from 875 to 888 f.p.s. over 25 shots. And 25 shots proved to be the limit, exactly as advertised. After shot 25, the next 5 pellets went this fast.
Clearly, the rifle has just fallen off the power curve but in slow motion. So there are actually 30 safe shots on a fill, and that equates to 3 full magazines. I’m so glad BSA publishes accurate figures for these things, as many other airgun companies seem to have no clue what’s right!
At the average velocity, this pellet produced 31.34 foot-pounds of muzzle energy. And I bet this pellet is also accurate, though that has to wait until I get out to the range, because this rifle is too loud for shooting inside the house. I took a risk by chronographing it for today’s report, but that’s as far as I’m willing to go.
Pellet 2 — H&N Baracuda
The second pellet I tested was the 21.3-grain H&N Baracuda Match. These are longer pellets that sometimes have difficulty feeding through rotary magazines like the BSA’s, but there was no problem today! They averaged 815 f.p.s. and ranged from 811 to 819 f.p.s. At the average velocity, they produced 31.42 foot-pounds of energy at the muzzle.
The Baracuda is another pellet that should prove very accurate in this rifle. They should be the best pellet at 50 yards, but that remains to be seen.
Pellet 3 — Eun Jin
The third and final pellet I tested was the 28.4-grain Eun Jin dome. This is a very long pellet and may be the longest that will work safely in the BSA magazine. But they did fit perfectly and had no hangups once I learned how to load the magazine correctly.
Eun Jins averaged 718 f.p.s in the test rifle. They ranged from a low of 713 to a high of 726 f.p.s. At the average velocity, they produced 32.52 foot-pounds of energy at the muzzle. In other rifles, these pellets have never been the most accurate at 50 yards, but they have often been accurate enough to use as hunting pellets. However, as close as H&N Baracudas are in power, I would choose the most accurate of the 2 pellets after we test them at distance.
The velocity remained very tight throughout the entire fill with all 3 pellets that were tested. That means BSA has balanced their valve to work with exactly the amount of air they recommend using. And the fact that they got exactly the number of powerful shots they advertised was a welcome bit of news. Also, 25 shots is a good number for a rifle in this power class.
Adjusting the trigger
I mentioned in the first report that I would be adjusting the trigger in this report. To do that, the action is removed from the stock. The sear is a direct-contact type, so care must be exercised to not get the engagement surfaces too small, or the trigger will be in danger of jumping off from a bump.
The owner’s manual is a single sheet of paper printed on both sides, but the instructions for adjusting the trigger are good and thorough.
The screw on the left adjusts the trigger-pull weight of the second stage. The nut and screw in the center adjusts the sear contact area and then locks in place. That adjustment affects the length of the second-stage pull. The screw under the trigger blade on the right adjusts the first stage and should not be touched, according to the manual.
I adjusted the trigger as light as it would go and set the sear as close as it would go and still be safe. The trigger still has significant creep in stage two, but it’s light and breaks at 2 lbs., 4 oz. I can work with it set this way.
50 yards next
Because of the rifle’s power, I’m going to skip the 25-yard test and go straight to 50 yards. If I’m successful, we should see accuracy that will override shooting at 25 yards, anyway. If I discover that’s the wrong way to do the test, I’ll change at the range and shoot at 25 yards first.