Posts Tagged ‘velocity test’

Ruger Air Hawk combo: Part 4

by Tom Gaylord, The Godfather of Airguns™
Writing as B.B. Pelletier

Ruger Airhawk Combo
Ruger Air Hawk combo is very popular.

Parts 1 and 2
Part 3

This report covers:

• Doing something different
• Tightened the barrel joint
• Sight-in and the first group with Hobby pellets
• Air Arms Falcon pellets
• RWS Superdome pellets
• H&N Baracuda Match pellets
• JSB Exact Express pellets
• Crosman Premier 7.9-grain pellets
• Alternate hold
• Conclusions

I started this test in July but have laid off for several weeks. Thanks for bearing with me. Today, we’ll look at the accuracy of the Ruger Airhawk combo at 10 meters.

I’m looking at this combo because a number of readers say they really like the rifle. Of course, it’s been compared to an RWS Diana 34, but I wouldn’t go that far. Yes, there are similarities between the two rifles, but they’re not identical. And each has its own unique firing characteristics – and we’ll all learn a lot about those as I fire the rifle for accuracy using the open sights.

If this rifle proves to be accurate, it’ll be a best buy, given the price of just $130. I know my test rifle is shooting slower than the advertised velocity, but I plan on testing the velocity, again, after the accuracy test, so don’t give up just yet.

Doing something different
I’m changing the way I test air rifles in an attempt to make some progress faster than in the past. I’ll shoot just 5 shots at 10 meters off a rest with each pellet and then look at the group. If the group shows promise, I will come back to the pellet. If not, I’ll move on. That way, I’ll be able to test more pellets in the same time.

I’ll also test at least 2 different variations of the artillery hold — the 2 that have proven the most successful over the years. If one seems better than the other, I’ll continue to use that hold for all the other tests.

Tightened the barrel joint
I noticed last time that the barrel joint wasn’t tight. This barrel has a bolt that can be tightened, so I removed the action from the stock and tightened the barrel pivot bolt. When I was doing that, I noticed that all of them were loose. The inletting of the action in the stock was very tight — fully the equal of anything made in Europe. That gives me hope this rifle will be accurate.

Sight-in and the first group with Hobby pellets
I sighted-in the gun and shot the first group with RWS Hobby pellets. Sight-in amounted to just one shot that told me the rifle was on target from the factory.

I’m showing the sight-in shot along with the first group for two reasons. First, it shows how low the first shot was, yet I knew I’d be okay because I was shooting from just 12 feet. I knew the group would hit the paper higher. Second, it shows how much the shots climbed on target when I shot from 10 meters. This lesson demonstrates that you cannot sight-in a gun for anything under 10 yards and expect it to be on at any other distance. Even 10 meters is too close to sight-in a rifle if you expect to ever hit things at 15 yards and beyond. The sights are too close to the target, and the angular separation from the bore is too great when you’re this close.

I held the rifle on the flat of my off hand with the triggerguard touching the heel of that hand. The group of 5 Hobbys measures 0.678 inches between centers. This is too large for a 10-meter group, so Hobbys are out of consideration.

Ruger Airhawk Combo sight-in and Hobby group
The sight-in shot hit below the bull, telling me the rifle was sighted-in. Five RWS Hobbys made a 0.678-inch group at 10 meters. Not good enough!

After this group, I adjusted the rear sight 7 clicks to the left but didn’t touch the elevation. The sight remained in that setting for the rest of this test.

Air Arms Falcon pellets
Next, I tried Air Arms Falcon pellets. Falcons hit the target well-centered but much lower than the Hobbys. Five pellets went into a group that measures 0.493 inches between centers. While that isn’t as good as I’d like to see at 10 meters, it does show some promise. I’ll probably shoot Falcons from 25 yards, as well.

Ruger Airhawk Combo Falcon group
Five Air Arms Falcon pellets went into 0.493 inches at 10 meters. This is interesting.

RWS Superdome pellets
Next, I tried RWS Superdomes. They gave me a puzzling result. Four of the 5 pellets went into 0.506 inches, but the final shot opened the group to 0.906 inches. That might have been an aiming error; but at 10 meters, I usually don’t make mistakes that large. I might try these again, but not if I find 2 other pellets that are better.

Ruger Airhawk Combo Superdome group
Five RWS Superdome pellets went into 0.906 inches, but 4 of them are in 0.506 inches. Interesting, but not good enough.

H&N Baracuda Match pellets
Next, I shot 5 H&N Baracuda Match pellets. Sometimes these pellets that seem too heavy for a gun will surprise you with their accuracy, although I have to say that happens more with heavy .22-caliber pellets than with .177s. It certainly didn’t happen this time. Five Baracuda Match went into 1.372 inches. Although 3 pellets are close, I don’t think this pellet is right for this rifle.

Ruger Airhawk Combo Baracuda Match group
Five Baracuda Match pellets in 1.372 inches at 10 meters. Not the pellet for this rifle.

JSB Exact Express pellets
Five JSB Exact Express pellets were next. I have to confess that, while I like JSB pellets a lot, I’ve never had any luck with the Express pellet in either caliber. Today was no different. Five went into a 1.466-inch group that proved to be the largest of the test. Definitely out of the running for this rifle!

Ruger Airhawk Combo JSB Express group
JSB Exact Express pellets made the largerst group of the test — 5 in 1.466 inches at 10 meters.

Crosman Premier 7.9-grain pellets
I felt I had to try the 7.9-grain Crosman Premier pellet that’s often the best in some rifles. And I got an interesting result. The first pellet hit the target high and near the center of the bull. Then the next 4 dropped over one inch and grouped in 0.411 inches.

Ruger Airhawk Combo Premier lite group
As a 5-shot group, Premier lites were not impressive, but only the first shot is apart from the group. Four went into 0.411 inches at 10 meters. This is a pellet worth testing further.

This group is small enough to interest me, so I shot a second group of 10 pellets. They landed in 0.746 inches, which is okay, but not the best. However, if you look at the group, you can see that 6 of the 10 pellets went into a much tighter group that’s a single hole measuring 0.357 inches between centers. I know that aiming errors can put me off by as much as these 4 outlying pellets at 10 meters, so this group gives me confidence that the Airhawk can really shoot.

Ruger Airhawk Combo Premier lite 10-shot group
Ten Premier lites went into 0.746 inches at 10 meters, but 6 of them went into just 0.357 inches. That looks promising!

Alternate hold
I then tried the same Premier lite pellets with my off hand slid forward so I could feel the beginning of the cocking slot against my palm. Now that I know this is a good pellet, I can try different things like this. Five pellets went into 0.852 inches, which isn’t good — but look where 3 of them went! That hole is a group measuring 0.069 inches! I don’t think that was due to the different hold, but I do think it tells me this rifle can really shoot and that the Premier lite pellet is right for this gun.

Ruger Airhawk Combo Premier lite second group
Using an alternate artillery hold, 5 Premier lites went into 0.852 inches. While that isn’t so good, 3 of those pellets went into 0.069 inches. I think the rifle can shoot, and this pellet is the right one – but the first hold is best.

Conclusions
Edith spotted the fact that I may have skewed the test results by not seasoning the barrel for each pellet. I guess that’s the down side of shooting so many 5-shot groups. It does bring up a good point. I think that when I move back to 25 yards, I’ll season the barrel with 20 shots per pellet before shooting the first 10-shot group.

She also suggested that I do a seasoned barrel vs. unseasoned barrel accuracy test. There are enough of you who believe in the seasoning process, so that makes such a test worth the effort.

Rossi Model Sport 82

by Tom Gaylord, The Godfather of Airguns™
Writing as B.B. Pelletier

Today’s report is the start of a guest blog from airgunner and blog reader Fred_BR from Brazil. He’s going to tell us about a breakbarrel spring-piston air rifle he recently acquired. It’s a civilian copy of a scarce military trainer.

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

Over to you, Fred.

This report covers:

• FAL in the Brazilian army
• FAC: Fuzil de Ar Comprimido
• My Model Sport 82

Rossi Sport 82 right
Rossi Sport 82

Today, I’ll show you an old rifle that I believe most of you have never seen: the Brazilian-made Rossi Model Sport 82. It is a civilian version of a military training rifle used by the Brazilian army to train recruits before letting them handle the firearm – the FN-FAL 7.62 NATO battle rifle.

FAL in the Brazilian army
In 1964, the Brazilian army adopted the FN FAL 7.62X51mm (.308 Winchester) battle rifle as a replacement for the old bolt-action Mauser rifles then in use. IMBEL, the Brazilian Government arsenal, acquired the rights to produce a local version of the firearm, eventually making 250,000 of them according to some sources. The FAL proved to be a very sound choice, and to this day it’s the preferred rifle of many military and police elite units. For recruits, however, the FAL is not exactly easy to master, especially for inexperienced hands.

The Brazilian army approached Amadeo Rossi S/A and asked for a version of their standard air rifle to mimic the FN FAL. Rossi, a Brazilian manufacturer well known to American shooters for its line of budget-priced revolvers, is also a traditional maker of popular air rifles, mostly inexpensive and very simple in design — but well built.

The response from Rossi was a breakbarrel spring-piston rifle with a redesigned stock that has a pistol grip, a false magazine, and front and rear metallic sights that copy those of the FAL. Lead inserts would bring the weight close to that of the standard FAL rifle. Even the carry handle was included. Caliber was .177, the only airgun caliber then available in Brazil.

Rossi Sport 82 left
The Sport 82 is a civilian version of the military FAC, or compressed air rifle, used by the Brazilian army for training.

[Editor's note: Many countries do not permit former military weapons or even airguns to be sold to civilians. They feel it promotes theft, which it certainly does. Some countries don't even allow civilians to use firearms chambered for military cartridges for the same reason.]

FAC: Fuzil de Ar Comprimido
The resulting gun would be adopted as the “FAC – Fuzil de Ar Comprimido,” Portuguese for “compressed air rifle,” a nickname sufficiently close to “FAL” to satisfy the officers. The rifle would be the initial introduction of recruits to shooting, before being allowed to use the firearm.

Rossi would sell this rifle to civilians with some modifications. Some say they were obliged to do so because of military restrictions, others say they modified the rifle to become more acceptable to young shooters — then the only market for airguns in Brazil. Rossi may have realized that no kid in their early teens would buy such a heavy rifle and made it lighter and without the false magazine and carry handle, but keeping the FAL-style sights. This model would be released to the shooting public in Brazil as the Model Sport 82.

My Model Sport 82
I searched for an example of this rifle after B.B.’s post on the Egyptian Hakim airgun. It didn’t take me long to find one. The gun is a spring-piston, breakbarrel rifle with 13.60 inches of barrel length, 38 inches overall, weighs 5 lb., 4 oz., and has a 15-inch length of pull. The stock is made of black-painted wood, and features a pistol grip and general style that basically copies the grip and stock of a standard fixed-stock FAL, although some models were sold with the natural color of wood. Later models would be equipped with barrel-mounted open sights, but my rifle has the FAL-style peep sights regulated for height and windage via two screws.

Rossi Sport 82 front sight
The front sight is a simple post protected by two ears like the FAL and located closer to the breech than on most airguns

Rossi Sport 82 rear sight
The rear sight is an aperture adjusted for height and windage by two screws. It’s mounted on top of a wood extension to fit the FAL-sized stock.

The spring-piston tube assembly is very short, almost junior-sized. To meet the FAL-lookalike specs required by the army, Rossi added an extension behind the rear portion of the spring tube, apparently also made of wood, just to keep the action from being too short in the long stock made for this model. Keep in mind, fellow readers, that airguns made back then in Brazil were mostly considered youth rifles not intended for adults at all, so they were mostly compact and lightweight models. The gun has no safety of any kind, so it relies on good handling to avoid accidental discharges.

The breakbarrel action is very smooth and easy to cock, as a good youth models needs to be. The short-stroke spring-piston rifle can push pellets in the 450 f.p.s. to 480 f.p.s. range. This is sufficient for most applications of such a training airgun. That’s the good news.

Now for the bad news: The trigger is horrendously heavy. I couldn’t even measure the trigger weight. I can only tell you that this gun sports the heaviest trigger I’ve ever encountered on any rifle — airgun or firearm. The thing is so difficult to pull that, after a few shots, I was feeling pain in my trigger finger. It definitely took the fun out of the equation pretty quickly. As the gun has no safety, I can only think this was Rossi’s way of preventing an accidental discharge by making the trigger so heavy that kids wouldn’t pull it unintentionally. Well, I almost could not pull that thing even on purpose!

I would love to show you lots of pictures of very tight groups made with the Rossi 82, but the best I could do was a mere 1.25 inches at 10 meters with this gun. I blame the trigger for that, and I plan to disassemble the gun to check the exact condition of its trigger and sear. Maybe some careful trigger work will improve it.

Rossi Sport 82 target
Ten 9.30-grain RWS Supermags grouped 1.25 inches at 10 meters, approximately. The rifle cannot really perform any better than this due to its heavy trigger.

Except for the trigger, the Sport 82 is a lightweight, easy-to-cock carbine with a distinguished look that sets it apart from other air rifles. It has a history of service to my country, training civilians and military recruits, and doing its job gallantly. To this day, the Brazilian army still introduces safe gun handling to trainees using the FAC.

Crosman 2240 conversion to air: Part 3

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

Crosman 2240 conversion to air: Part 1
Crosman 2240 conversion to air: Part 2
R.A.I. Adjustable AR Adapter for Crosman 2240 pistols: Part 1
R.A.I. Adjustable AR Adapter for Crosman 2240 pistols: Part 2

WARNING: This conversion changes the operation of the pistol to use air at up to three times the pressure it was designed for. The parts that are installed are strong, but there are other parts in the gun that aren’t changed and could fail when subjected to the higher pressures. Pyramyd Air advises anyone making such a conversion to exercise extreme caution.

Crosman 2240 air conversion long barrel
The steel breech and longer barrel increase the 2240′s length dramatically.

This report covers:

• Installation of a steel breech and longer barrel
• Easy steps
• First velocity test
• Crosman Premier pellets
• RWS Hobby pellets
• RWS Superdome pellets
• What have we learned?
• Replace the striker spring with a heavier spring
• Crosman Premier pellets
• RWS Hobby pellets
• RWS Superdome pellets
• Evaluation to this point

This is the third look at converting a Crosman 2240 CO2 pistol to run on high-pressure air. In the last report, we saw how the conversion works with the factory barrel and factory striker spring. Today I will install a longer barrel with a steel breech and see what that does. Then I will add a stronger striker spring and see what that does.

Installation of a steel breech and longer barrel
Installing a Crosman steel breech and a Crosman 14.50-inch barrel on the 2240 pistol took all of 10 minutes. Four screws were removed, and both the plastic breech and barrel came off. After the detailed disassembly you saw in Part 1 of this report, this modification was a walk in the park.

Easy steps
The new breech was made by Crosman and sold by Pyramyd Air for $38, plus shipping. The barrel was also made by Crosman, and I bought it off eBay for $37 plus shipping. Together, these two parts have added about $85 to the cost of the gun, on top of the $65 for the air conversion that was given to me by Rick Eutsler. That’s an additional $150 I’ve put into this gun. And I’m not counting the adjustable stock and adapter that turns this pistol into a carbine. I’m not complaining about the cost, but don’t let anyone say this is a cheaper route than buying a Benjamin Discovery outright. What you get with this conversion is the time you need to make the investment. You can do this in easy steps.

First velocity test
I left the factory striker spring in place for this first test and pressurized the pistol to 2000 psi. Then, I shot the same 3 pellets I’ve been testing all along:

14.3-grain Crosman Premier pellets
11.9-grain RWS Hobby pellets
14.5-grain RWS Superdome pellets

Below are the velocities on CO2 for the factory gun; then the velocities for the factory gun with the high-pressure air conversion; and finally the velocities for the gun with the steel breech, longer barrel and factory spring — all operating at 2000 psi.

Crosman Premier pellets
CO2 avg…………..Air in factory gun average…………..Air in long barrel average
448 f.p.s…………………..486 f.p.s………………………………………517 f.p.s.

I got 15 shots with this pellet and the longer barrel. They ranged from 504 f.p.s. to 524 f.p.s.

RWS Hobby pellets
CO2 avg…………..Air in factory gun average…………..Air in long barrel average
482 f.p.s…………………..526 f.p.s………………………………………564 f.p.s.

This pellet gave me 18 shots from a 2000 psi fill with the longer barrel. They ranged from a low of 548 f.p.s. to a high of 573 f.p.s.

RWS Superdome pellets
CO2 avg…………..Air in factory gun average…………..Air in long barrel average
455 f.p.s…………………..483 f.p.s………………………………………525 f.p.s.

Superdomes gave 14 shots on a 2000 psi fill. With the longer barrel, the low was 516 f.p.s. and the high was 534 f.p.s.

What have we learned?
Obviously, the pistol shoots faster with the longer barrel and no other changes. Adding the steel breech does strengthen the rear of the barrel, but it doesn’t add anything to velocity.

All 3 shot strings posted above started out slow and increased as the shots were fired. So, the pressure curve is about ideal when the fill is at 2000 psi.

The velocity increase from CO2 in the standard pistol to high-pressure air in the longer barrel is very significant. But by leaving the factory striker (hammer) spring in the gun, we’re not getting all this conversion has to offer.

Replace the striker spring with a heavier spring
The kit Rick Eutsler sent me contained two striker springs — both of which are stronger than the factory spring. I removed the factory spring and installed the spring that was the weakest of the two, though stronger than the factory spring. I wanted to keep the fill pressure at 2000 psi, and the strongest spring would not be the way to do that.

I filled the gun to 2000 psi and proceeded to shoot Crosman Premiers. Here are the first 8 shots.

581
577
576
575
578
576
570
568

The velocity dropped with almost every shot. Yes, there are a few exceptions, but the trend is generally down. What this means is that the new spring is too strong for the fill pressure of 2000 psi. The pistol wants to start at a higher pressure with this spring.

I decided to fill the gun to 2250 psi. This is above the maximum I wanted to use, but it illustrates the relationship I just mentioned and is worth a look. Let’s look at the velocities at this pressure.

Crosman Premier pellets
588 f.p.s. average, low 582 f.p.s., high 594 f.p.s.

Compare the above to the average velocity with the factory striker spring and longer barrel, which was 517 f.p.s. This is a huge increase of 71 f.p.s. The stronger striker spring gives more of a boost than the longer barrel by itself. But — and understand this — without the longer barrel, the stronger spring would only waste more air. This is a modification that requires all the components to work together. You can’t just pick one item and be done with it.

RWS Hobby pellets
640 f.p.s. average, 632 f.p.s. low, 646 f.p.s. high

The remarks are the same for Hobbys as they are for the Premiers.

RWS Superdome pellets
590 f.p.s. average, 580 f.p.s. low, 596 f.p.s. high

Same remarks apply to this pellet as to the others.

All three pellets gave me maximum shot strings of 10 shots when set up this way. Obviously, more air is being used and the volume of the reservoir has remained the same.

Evaluation to this point
We’ve taken this Crosman 2240 pistol from one power on CO2 to a much higher power with high-pressure air, a longer barrel, a stronger spring and a steel breech. These modifications cost a total of $150 over the cost of the initial pistol ($60). Is it worth it?

The answer will depend on who’s talking. Some shooters enjoy putting their hands on the parts of their airguns and making their own creations. Others look at the total investment and just want something that shoots well for the least amount of money. This 2240 modification is not for the latter group, because we still have to add a $60 RAI adapter and a $60 UTG Adjustable Stock. That brings the cost of the gun we’re modifying to a total of $330.

The next step is to try this modification for accuracy. For that, I’ll attach the adapter and stock, again. I think it has to be tested to at least 25 yards with a scoped gun.

Ruger Air Hawk combo: Part 3

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

This report covers:

• Ruger Air Hawk velocity retest
• RWS Hobby pellets
• JSB Exact Heavy pellets
• RWS HyperMAX pellets
• New Arlington field target club
• Beautiful course!

Ruger Airhawk Combo

Ruger Air Hawk combo

Parts 1 and 2

Ruger Air Hawk velocity retest
I hadn’t planned to do this test, but the velocity numbers in the previous blog post were so far off expectations that I felt compelled to try it, again. I was curious about the poor velocity performance of the Ruger Air Hawk combo. Someone suggested the breech seal might be too low and others agreed, so I shimmed the seal. It appears to be ever so slight higher now, but the velocity is definitely higher.

Ruger Air Hawi Combo breech seal before shim
Before the shim the breech seal was low and flat.

Ruger Air Hawi Combo breech seal after shim

The shim raised the breech seal slightly.

RWS Hobby pellets
In the first test, RWS Hobby pellets settled into a range of 750 to 810 f.p.s. I didn’t give averages because the gun seemed to be detonating too much.

This time, the range went from 1014 to 1088 f.p.s. Two shots registered 649 and 761 f.p.s., respectively. My gut feeling is that the velocity has increased, but the rifle’s still detonating too much to know anything for sure.

JSB Exact Heavy pellets
The second pellet was the JSB Exact Heavy that weighs 10.34 grains. In the last test, these ranged between 534 and 757 f.p.s. In this test they ranged between 572 and 893 f.p.s., with all but two shots above 623 f.p.s. There’s a definite velocity increase this time; but, again, I can’t be precise.

RWS HyperMAX pellets
The last pellet tested was the 5.2-grain RWS HyperMAX lead-free pellets. Previously, these ranged between 817 and 970 f.p.s. In this test, they ranged from 906 to 1203, with only one not going above 1180 f.p.s.

I think it’s clear that the breech seal was too low during the first test. Raising it with a shim did boost velocity, though the gun is still burning too much oil to tell for sure how much velocity has been gained. When it stabilizes, we’ll have a better idea – but it does seem the gun is on the numbers now.

My next test will be for accuracy at 10 meters, using the open sights.

And, now, for something completely different!

New Arlington field target club
We have a new field target club in North Central Texas. The Arlington Sportsman’s Club has started a field target club, which held their second trial match last Saturday on 10 of the club’s 35 3D archery lanes. These lanes are carved into a wooded section of the club’s property and are ideal for field target matches.

This is the second FT match I’ve attended in the past few years, and I have to comment that the sport is now more popular than ever! When I competed in the 1990s, field target was run by a rigid set of rules that put older and less mobile shooters at a disadvantage. And there were some clubs that enforced offhand-only shooting to the extent that the sport just wasn’t attractive to many shooters.

Today, I see relaxed rules that allow seating and bipods for the rifles, changing everything! The shooter doesn’t have to get into a seated position on the ground and hold the rifle so nothing touches the ground. Now, it’s fun! And I can tell that the shooters are 10-20 years older than they were when I competed in the 1990s. That still puts them at my age — only, now, they’re having fun.

Beautiful course!
The Arlington match director, Chris Simmons, showed me around the course, which was the finest FT course I’ve ever visited. Of course, having those lanes premade by the 3D archers made all the difference.

match directors briefing
The match director’s briefing started early, so the match started right on time.

Chris allowed one point for every target that fell, which is the common way of scoring a match. The Pecan Plantation club I visited some months back allowed 2 points for a target fall and one point for just hitting the target. Either way works fine, but seeing the target fall is what the sport’s all about.

Chris left all the kill-zone reducers off for this match, so every kill zone was 1.5 inches. In the future, that will change. I know these targets seemed easier to kill, but when they have half-inch kill zones and are 25 yards distant, that will change.

target
The kill-zone reducers were left off all targets for this match.

tower
The match used archery facilities like this tower, which was designated for offhand shots, only. We never had features like this when I was a match director!

You might think that because this is a startup club all the shooters were duffers, but that was not the case. I saw many shooters who obviously knew exactly what they were doing. One man was shooting a Whiscombe JW 70, which is rare at any FT match. And another shot an Air Arms Pro-Sport he received only the night before the match. He got zeroed before the match started and did very well shooting from the offhand position.

Whiscombe
Here is a Whiscombe JW 70! How many of these have you seen?

The shooters from the Dallas FT club weren’t able to make this match because they were working on a new venue for their club on the same day. But they’ll attend matches in the future. And I think I may blow the dead bees out of my Air Arms TX200 and shoot a few matches, myself. It’s been over 15 years since I competed; but the way things are run today, this looks like fun!

Ruger Air Hawk combo: Parts 1 and 2

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

Ruger Airhawk Combo

Ruger Air Hawk combo

This report covers:

• Why the Ruger Air Hawk?
• Impressions of the rifle
• Before the test
• RWS Hobby pellets
• JSB Exact Heavy 10.34-grain pellets
• Trigger-pull
• Firing behavior
• What to do now?

I’m testing the Ruger Air Hawk combo today, and I’m also starting something new. I’m combining Parts 1 and 2 into a single report. Part 1 has always been a general description of the item being tested, and Part 2 has been the velocity test. But you can follow the links embedded in the report to the Pyramyd Air product page and read the specs, so I don’t have to dwell on them very long. Just give you my impressions and then check velocity, cocking effort and trigger pull. If this works, I will do it this way from now on if the gun isn’t overly complex and if there’s nothing unique about it. If not, I’ll return to the conventional format. For that reason, I’m calling this both Parts 1 and 2.

Why the Ruger Air Hawk?
Most of you are aware that Ruger doesn’t make airguns. They have them made by others to their specifications. In today’s case, the Air Hawk is made in China. It’s imported and distributed by Umarex USA.

I chose to review the Air Hawk because many readers have asked me repeatedly to do so. At the time of this report, there are 114 customer reviews on the rifle and it’s rating is about 4.5 stars out of 5. That bodes well. I won’t read those reviews before I examine the rifle, just to keep my opinions honest.

The Air Hawk is a straightforward breakbarrel spring-piston air rifle. The one I’m testing is in .177 caliber, the only caliber they come in. Mine is serial number 00474874. It has a conventional coiled steel mainspring, a wood stock and blued steel finish. The fiberoptic sights are constructed mostly of plastic, though the rear sight does have some metal parts. And the rear sight is adjustable in both directions.

It has been said that this is a copy of the Diana 34. I do see the resemblance, but there are also differences. The trigger isn’t the same, nor is the cocking linkage.

So here we have a very traditional breakbarrel rifle. What’s the attraction? The price, I suppose. This combo that also includes a 4X32 scope retails for $130. What makes this Ruger Air Hawk such a bargain? One word: Power!

The Air Hawk is a 1,000 f.p.s. rifle — according to its manual, or a 1,200 f.p.s. gun if you believe what’s written on the box. One velocity is probably derived with lightweight lead pellets and the other with lead-free pellets. We shall see in a moment. The point is that velocity sells airguns these days. New shooters need to experience all they can with high-velocity spring guns before they’re willing to explore the rest of what’s available. And, with 4.5 stars from 114 customers, it sounds like the Air Hawk really delivers the goods. Again, we shall see.

Impressions of the rifle
The Air Hawk is heavier than I was expecting. It weighs a tad over 8 lbs. and feels stout in my hands. The stock proportions are generous without being oversized. This is a large air rifle. They rate the cocking effort at 30 lbs., and the test rifle cocks at 30 lbs. on the nose. I did have to try it several times before getting it down to 30 lbs., so there’s initial stiffness that has to be worn away; but that’s part of every break-in.

The finish of the wood and metal parts is smooth and even. The metal parts are matte black and the wood has a shine. The contouring of the wood is well done, although there’s no checkering. The comb is Monte Carlo-shaped, and there’s no raised cheekpiece. Since the automatic safety is located at the rear of the spring tube, this is a 100 percent ambidextrous rifle.

The cocking linkage is two-piece and articulated in the middle. The rear piece slides on a channel cut in the wood stock. Unlike many Chinese spring rifles, this Air Hawk sits centered perfectly in the stock, with no canting of the action! That’s a plus because it means there’s no rubbing of the cocking linkage parts against the wood.

The barrel detent is a ball bearing, similar to a Diana 34. I do have to slap the barrel slightly to break it open, so the ball is under a lot of spring tension. The base block that holds the barrel is held to the action forks by a bolt — meaning that barrel tension can be adjusted. That’s a huge plus in any breakbarrel.

The trigger blade is metal and very straight. I like the angle of the blade, as it suits my hand quite well. The trigger-pull adjusts for the length of the first stage, only. A screw in front of the trigger blade controls this.

My overall impression is that this is a well-designed air rifle. More importantly, someone is in the Chinese plant assuring adherence to quality standards.

Okay, you can get the rest of the specifications from the product listing I’ve linked to above. Now, I’m going to test the velocity and trigger-pull.

Before the test
I shot the rifle before the test and noted that the first 5 or 6 shots were detonations (loud bangs, like gunshots) with oil droplets coming out of the muzzle. So, the rifle is lubricated heavily at the factory. I shot the rifle several more times until the detonations  seemed to end.

RWS Hobby pellets
The first pellet tested was the RWS Hobby. I use the Hobby as my reality check with some airguns, because not only is it a pure lead pellet — it’s also often very accurate. I’m going to show the entire string here, for reasons I will explain.

Shot       Vel.
1…………1093
2………..1499
3………….789
4………….797
5………….766
6………….803
7………….810
8………….755
9………….769
10…………806
11…………750
12…………771

Pretty obvious what’s happening. The gun was detonating on the first 2 shots, then it sort of settled down for the next 10. I’m not going to give any averages here because I don’t believe the rifle has completely settled down yet.

People always ask me how I break in new airguns. Well, that depends on the gun. I thought I would show you with this one.

JSB Exact Heavy 10.34-grain pellets
Next up was the JSB Exact Heavy 10.34 grains pellet. If Hobbys are going in the 700s, then this pellet is too heavy for the powerplant; but when a gun is detonating, a heavier pellet will help burn off the excess oil. The rifle was still spewing out a cloud of oil mist with each shot.

Shot       Vel.
1………….659
2…………757
3…………665
4…………534
5…………553
6…………536
7…………550
8…………593
9…………555
10………..546
11………..631
12………..581
13………..559

As you can see, the gun is still burning off excess oil. That’s where those faster shots come from.

Another way to burn excess oil is to shoot a very light pellet. It makes the gun detonate, which is probably needed here. So, I switched to RWS HyperMAX lead-free pellets.

Shot       Vel.
1………….882
2…………970
3…………892
4…………904
5…………854
6…………835
7…………816
8…………877
9…………814
10………..799

The rifle is still burning oil, but it’s calmed down a lot by this point. I returned to Hobbys to see where things were.

Shot      Vel.
1…………630
2………..644
3………..677
4………..722
5………..720
6………..699
7………..706
8………..1080
9………..790
10……….1089

Okay, at this point I know the rifle is still detonating a bit and dieseling on every shot — as it’s supposed to. All spring guns that shoot over 600 f.p.s. diesel with each shot, according to the testing that was done in the 1970s by the Cardew father/son team.

Trigger-pull
The trigger adjusts for stage-one length of pull, only. This one feels good where it is, so I’m leaving it there. The trigger releases at 3 lbs., 6 oz. Stage 2 is fairly crisp. I think this will be an easy rifle to shoot.

Firing behavior
The Air Hawk I’m testing has a quick shot cycle with some recoil and some vibration. But during the few shots of this test, the rifle became easier to cock and the firing cycle smoothed out. So, I think this is a rifle that will improve with time. Also, I now note that the barrel no longer remains where it’s put after being cocked. So, the pivot joint needs to be tightened. I’ll do that before the next test, which will be an accuracy test using the open sights that come on the rifle.

What to do now?
This is where a lot of newer airgunners are stumped. If they have a chronograph, they may feel their rifle is broken or that they’ll hurt it by shooting it more. But the 98 percent of shooters who don’t own a chronograph will just keep right on shooting their airgun, which is what I plan to do.

Next comes the accuracy test. I’ll test the rifle at both 10 meters and 25 yards using the open sights, then I’ll mount the scope that came with it and test it again.

After I finish the accuracy testing, I’ll return and look at the velocity once more. I’m guessing the rifle will have settled down by then.

BSA Airsporter Stutzen: Part 2

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

BSA Airsporter Stutzen
BSA Airsporter Stutzen was the final version of the Airsporter with a tap.

Part 1

This report covers:

• Your interests
• Gamo: Yes or no?
• Get over it!
• Firing cycle
• Velocity with RWS Hobby pellets
• RWS Superpoint pellets
• Webley Flying Scott High Velocity Twin Ring pellets
• Cocking effort
• Trigger-pull
• Evaluation so far

We all learned about the BSA Airsporter in the last report, and I got some important feedback from readers. Apparently, these rifles have been sold at airgun shows right under my nose without my knowledge. The one thing that’s certain is that I’m not the only one who knows how nice this rifle is. Several of you know it and are smart enough to stay under the radar as you pick up these air rifles at airgun shows. I hope to see some of these at the Ft. Worth Airgun Show in September.

Your interests
There were several things the blog readers commented on in the first report. Several of you said you liked the stutzen styling, which is why I mentioned that stutzens are not specific to any one manufacturer. A couple folks noticed how this rifle resembles the Diana 430 Stutzen, and I agree they do look similar. But they aren’t alike at all. The Diana rifle has an entirely different powerplant design and cocking linkage; and even though it resembles this one, it isn’t the same or even that close.

The Diana 430 Stutzen has a sliding compression chamber, like the TX200 Mark III. You load the pellet directly into the breech of the barrel of that rifle. This BSA Airsporter Stutzen has a loading tap that accepts the pellet. When the gun fires, the air blast blows the pellet from the tap into the breech, and that results in some power loss when compared to a rifle that takes the pellet directly into the breech.

Power output was another topic you discussed a lot. Some of you hoped this rifle would make 12 foot-pounds, but a few readers guessed that it’s more of an 8 to 9 foot-pound airgun. Today is velocity day so we will see exactly what this particular rifle will do.

Gamo: Yes or no?
Then there was some discussion on whether or not this rifle was made by BSA in England or by Gamo in Spain after Gamo bought BSA. Here’s the answer: This rifle was made by the BSA company in Birmingham, England, before the company was sold to Gamo.

I related that I had tested a Gamo Stutzen with a rotary breech many years ago and didn’t care for it, and that kicked off a round of discussions. Fred_BR, our Brazilian reader, said he has a .22-caliber Gamo Stutzen with rotary breech that he loves. He found it difficult to understand what my objections were.

Some of you were angry that Gamo owns BSA and continues to build and sell spring rifles under that name, which I guess is similar to the Chinese owning Beeman and making and selling air rifles under that name. I understand that sentiment. When Umarex purchased Hämmerli and started to sell airguns made in China under that name, it really set me off. I’d always been a fan of the hand-built Hämmerli free pistols that cost thousands of dollars, and it just didn’t seem right to use that prestigious name to sell something inexpensive and mass-produced. When Crosman came out with a spring rifle they called the Benjamin Super Steak a few years ago, I went nuts! As far as I was concerned, the name Streak belonged to a Sheridan airgun.

Get over it!
But we just have to let it go. Brand changes are a fact of life and will always be with us. If they weren’t, there would be no such thing as Redline Levis jeans and Cleveland 335 Ford engines. The most we enthusiasts can do is identify those models that have the features we want and pursue them over the rest of the items bearing similar names but different specifications.

Shot cycle
That being said, I was prepared not to like this rifle when I got it. I remembered the harsh firing cycle of the Gamo Stutzen .177 rifle I tested for The Airgun Letter and expected this one to be the same. But it isn’t. Where the Gamo was harsh, this BSA is smooth. The first shot told me this is a completely different air rifle from what I’d expected.

Velocity with RWS Hobby pellets
The first pellet I tested was the lightweight RWS Hobby. Since this rifle is a taploader, you need pellets with wide skirts that are also thin so they can spread out and fill the tap chamber when the air blast hits them. A number of popular pellets I tested were 100 f.p.s. slower than expected because they were either too small for the tap or their skirts would not distort with the shot. But Hobbys are both larger in diameter and also have thin skirts. As far as pellet seating is concerned, it isn’t possible with a taploader. You just drop it in nose-first and you’re done. The pellet takes it from there.

Hobbys averaged 800 f.p.s. on the nose. The low was 795 f.p.s., and the high was 804 f.p.s., so the maximum spread was only 9 f.p.s. That’s an indication that the Hobby is a good pellet for this rifle. At the average velocity, Hobbys generate 9.95 foot-pounds at the muzzle, which is certainly on the high side of many of the guesstimates.

RWS Superpoint pellets
As I mentioned, I did try pellets from other makers, but they were all too slow –which indicates they aren’t sealing well in the tap. But I knew RWS Superpoints also have a thin skirt from my work with the Hakim, which is also a taploader, so I decided to give them a try. Superpoints weigh 8.2 grains in .177 caliber, so they aren’t the lightweights Hobbys are, but their thin skirts may compensate for that.

Superpoints averaged 766 f.p.s. in the Stutzen, with a low of 759 f.p.s. and a high of 770 f.p.s. The spread is only 11 f.p.s., which indicates this is also a good pellet for this rifle. The pellets that dropped 100 f.p.s. from what was expected also had large velocity spreads between individual shots, which shows how inconsistent they are in this rifle. At the average velocity, Superpoints generated 10.69 foot-pounds of muzzle energy — putting to rest the rumor that this is a weak spring-piston rifle. I believe the rifle I have is up to snuff and performing as well as can be expected.

Webley Flying Scot High Velocity Twin Ring pellets
Here’s a pellet most U.S. shooters don’t know. I know these are no longer being made in the UK; but since the usual pellets weren’t working, I decided to give them a try. The Flying Scot is a domed pure lead pellet that has a very thin skirt. They also stop about halfway down in the BSA loading tap, which makes them the largest of the 3 pellets I tested. The weight varies from 7.3 grains to 7.5 grains, but most of the pellets weighed 7.3 grains.

Webley Flying Scott pellets
Webley Flying Scot pellets are pure lead domes. They’re lightweight with thin skirts.

Webley Flying Scott tin
Flying Scot tin

Flying Scots averaged 775 f.p.s. in the BSA, with a low of 758 f.p.s. and a high of 791 f.p.s., with a spread of 33 f.p.s. — much greater than either of the other two pellets. This is an indication that this pellet is probably not a premium pellet and may not have good accuracy. But I’ll test it. At the average velocity, the Flying Scot produced 9.74 foot-pounds of muzzle energy.

Cocking effort
This rifle cocks with a maximum of 29 lbs. of effort. Most of the time the scale needle stays around 26 lbs., but it always does spike up to 29 lbs. early in every cocking stroke. It feels more like 40 lbs., though, because of where the cocking linkage pivot point is located.

Trigger-pull
The non-adjustable 2-stage trigger takes up with about 1 lb., 3 oz. for the first stage, then stage 2 releases at 4 lbs., 14 oz. The trigger shape and linkage is so perfectly placed that it feels like half that.

Evaluation so far
This BSA Stutzen rifle has surprised me at every turn. I expected not to like it, yet found it to be smooth-shooting with a light, crisp trigger. I expected lower power than I’m seeing in this test, so obviously this rifle can perform. I know BSA has a reputation for making great barrels, so I can’t wait to see how it does on targets. That’s next.

Crosman 2240 conversion to air: Part 2

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

Crosman 2240 conversion to air: Part 1
R.A.I. Adjustable Adapter: Part 1
R.A.I. Adjustable Adapter: Part 2

WARNING: This conversion changes the operation of the pistol to use air at up to three times the pressure it was designed for. The parts that are installed are strong, but there are other parts in the gun that aren’t changed and could fail when subjected to the higher pressures. Pyramyd Air advises anyone making such a conversion to exercise extreme caution.

Crosman 2240 air conversion
My Crosman 2240 has been converted to operate on high-pressure air.

This report covers:

• Where we are
• Before filling the first time
• Shooting the gun
• Crosman Premier pellets
• RWS Hobby pellets
• RWS Superdome pellets
• What comes next

Let’s look at what the conversion to air did for the Crosman 2240. Boy, was there ever a lot of discussion on that report! I think this may be one of the all-time most popular subjects on this blog.

Where we are
Here’s where I am with this subject. The 2240 is now converted. I plan to test it with 2,000 psi air today, and I do not plan to go higher. This is a test of what’s out there and some of the things that can be done with a 2240, but I’m not in the business of hotrodding this pistol. Many other folks are doing that very well; so, if you are interested in what’s possible, read what they have to say.

Today, I’m going to test the pistol with the conversion but with the stock striker spring still installed. In other words, if you simply screwed the tube into the gun and did nothing else (the front sight still has to come off to clear the tube), this is what you’ll get. I did change the face seal, which is why I disassembled the pistol in the previous report; but that wasn’t strictly necessary, since I am pressurizing to only 2,000 psi. I did it just to show how the entire kit is installed.

Before filling the first time
Before filling the gun, which is now done through the male Foster nipple on the end of the air tube, I put several drops of silicone chamber oil into the fill nipple. It came to me bone-dry, and I wanted all the seals inside the unit to get a coating of this oil. Then, I connected the gun to my carbon fiber air tank and slowly filled it to 2,000 psi. I say slowly, but as small as this air tube/reservoir is, it fills pretty fast. It probably took only 15-20 seconds to fill it all the way. You want to go as slowly as as possible to keep heat from building.

When I bled the air connection in the hose, the inlet valve in the air tube remained open and all the air bled out. So, I refilled it and bled it a second time. This time, it sealed as it should — thanks to the oil, I believe.

Shooting the gun
It was now time to test the gun. I had no idea what it was going to do, but I left my hearing protection off to hear if the first shot was loud. It wasn’t. Perhaps the gun is a little louder than it is when using CO2, but the difference is not that great. Of course, I used eye protection for the chronographing session, because the pellet trap is so close. I use a trap with duct seal to keep the rebounds down and the noise to a minimum.

Crosman Premier pellets
The first pellet I tested was the 14.3-grain Crosman Premier dome. I should add that I shoot only the pellets from the cardboard box, which is why I link to them, only. We were informed several months ago that Crosman planned to stop selling Premiers in the cardboard box and I stocked up on them. But I see they’re still available.

Back in 2010, I did a test of the CO2 2240 pistol, so I have the recorded velocities for this exact pistol on CO2. It averaged 448 f.p.s. with Crosman Premiers. On 2000 psi air, the first shot was 468 f.p.s. It increased to a maximum of 492 f.p.s. by shot 7 and dropped back to 466 f.p.s. by shot 15. At the end of the string, the gun was still holding 1200 psi of air pressure. The average velocity of 15 shots was 486 f.p.s., which means air boosted the average velocity of this pellet by 39 f.p.s.

RWS Hobby pellets
Next up were 11.9-grain RWS Hobby pellets. When the pistol was running on CO2, these pellets averaged 482 f.p.s. On 2000 psi air, they started at 515 f.p.s. and increased to 537 f.p.s. by shot 9. The velocity droped back down to 511 f.p.s. by shot 16. The average velocity for this string of 16 shots was 525 f.p.s. — a 43 f.p.s. increase on air. The remaining pressure was 1200 psi, once again.

RWS Superdome pellets
The final pellet I tested was the 14.5-grain RWS Superdome. When the pistol ran on CO2, Superdomes averaged 455 f.p.s. On 2000 psi air, they started at 470 f.p.s. and drifted up to 495 f.p.s. by shot 7. They dropped back down to 467 f.p.s. by shot 16. The average velocity was 483 f.p.s., an increase of 28 f.p.s. over CO2.

Notice that the gun performs similarly, regardless of what pellet was tested. The curve starts out slow, builds to the maximum quickly and then drops back to the starting point just as quickly. The three pellets gave a total shot count of 15, 16 and 16, respectively.

What comes next?
I can’t test the pistol for accuracy as it is right now because the front sight has no clearance to be re-installed. And the plastic 2240 receiver does not have a scope base on the receiver. Decision time.

I could get a steel breech for the 2240 from Pyramyd Air. While it will not accept the 2240 rear sight, it does have 11mm dovetails for a scope. That’ll work with the barrel that’s on the gun right now; but if I get a longer barrel, I’ll get a little more velocity from this same setup. So, I ordered a 14.5-inch barrel from an eBay vendor.

There are a number of different ways this can go with these parts, so I will wait to see what seems best once I have them.

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