by Tom Gaylord, a.k.a. B.B. Pelletier
Today, we’ll look at the accuracy of the new .25-caliber AirForce EscapeUL. This is the ultra-lightweight version of the Escape rifle and has most of the Escape’s power but is more than a pound lighter. The Escape is already lightweight, but at just 4.25 lbs., the EscapeUL is a real featherweight.
The day I chose to test this rifle was very cold, with a threatening breeze that soon picked up to a 20 m.p.h. wind. I did all of my shooting between puffs and gusts.
Because this rifle is so potentially powerful, I decided to test it all-out with the first 2 pellets. The power adjuster was run up as high as it would go and the tank was filled to 3,000 psi. The first pellet I tested was the heavyweight 43.2-grain Eun Jin pointed pellet. As you’ll recall from my tests of the Escape, I’m shooting 5-shot groups instead of 10-shot groups because the velocity decreases with every shot. At 50 yards, I can keep 5 shots in a good group, but trying to do that for 10 in a row opens things up. There are still 10 good shots on a fill, but you have to change your aim point to use all of them.
The first group measured 1.866 inches between centers. That’s with a pellet that produces from 70 to 80 percent of the power of a .22 long rifle bullet, so it’s plenty potent. The Eun Jin pellets are not the most accurate in these rifles; but for power on target, they’re pretty hard to beat.
Next, I refilled the rifle and tried the same thing with the 35.8-grain Eun Jin dome. This time the group opened to 2.506 inches between centers. In light of the heavier pointed pellet’s accuracy, I don’t think I would use this pellet in this rifle.
Experience comes in handy
I’ve said many times that a shooter can adjust these AirForce rifles so much that you’ll never be able to test everything; but, fortunately, there’s a better way if you have some experience to go on. And I did have some experience because I’d already tested the Escape rifle. While it does have 6 inches less barrel and a thinner barrel to boot, the rest of the EscapeUL is pretty much the same as the Escape. I felt that if I went in the direction that gave some success with the Escape, it might work with this rifle, as well.
JSB Exact King
I knew that the Lothar Walther barrels in AirForce rifles like JSB pellets, and in .25 caliber the JSB Exact King pellet is a real performer. When I tested the TalonP pistol, the King was one of the best pellets, and you know the Escape rifles are all based on the TalonP platform.
I also knew that I should reduce both the starting air pressure in the tank and the power setting to do well with the King. But I wanted to see if it could handle the full 3,000 psi; so, the tank was filled to the max, but the power setting was dialed back to setting 8. I started shooting and was so successful that I kept right on after the fifth shot. Eight shots went into 1.61 inches at 50 yards. I would have shot another 2 shots but this time the air pressure had dropped to 2,000 psi on the built-in gauge, and I thought the next shot might go somewhere else.
Next, I tried the Kings with the same power setting (8) and a starting air pressure of 2,600 psi. I shot just 5 pellets that went into 1.209 inches at 50 yards. That was definitely the best the rifle had done to this point, but I’d seen even better accuracy from the Escape, so I decided to shoot these pellets again.
A second group of Kings with the same fill pressure and power settings produced a 1.526-inch group. That was still good, but I felt the rifle could do even better. It was time to switch pellets.
Ton Jones has done more testing than I with these rifles, and he likes the Predator Polymag pellet the best. Even when he knows the Eun Jin pointed pellet produces more energy, he trusts the Predator Polymag to go where he shoots. That was the next pellet for me. I filled the tank to just 2,500 psi and set the power at 6.
I expected a good group, but I wasn’t prepared for how good! Five Polymags went into 0.622 inches at 50 yards. Despite the cold (20 degrees F) and the winds that were gusting to 20 m.p.h., this hollowpoint pellet was drilling them in!
Predator calls their Polymag a pointed pellet, but I call it a hollowpoint. The point is just a plastic tip that’s glued in place. The pellet acts like a hollowpoint on game, so I call it one regardless of the plastic tip. Just a little quirk of mine, I guess.
That first group was stunning. By now, the wind was blowing all the time, and my day with air rifles had ended. I did shoot a final group of Polymags in the wind, waiting out the gusts and shooting when the wind was down to about 5-10 m.p.h. The same setting and fill pressure was used. This time, 5 pellets landed in 1.298 inches at 50 yards, and I can truthfully say it was the wind’s fault. However, this group is still the third best of the day, which says a lot for the Predators in a reasonable wind. I think Ton is right — this is the best pellet for the Escape rifles, but you have to lower the power and fill pressure.
More to do
As with the Escape rifle, I’m not done with the test just yet. I need to get the velocity figures for the best pellets, power settings and fill pressures so we have some idea what this rifle can reasonably do in the field. Before I do that, I want to try the EscapeSS first.
Summary so far
Most shooters will look at the Escape’s raw power and choose it over the EscapeUL on that basis, alone. But I look at the light weight, compact size and the stunning accuracy of the EscapeUL and think it would be my pick, so far. From the standpoint of muzzle report and recoil, there’s very little difference in these 2 rifles. Both are loud and both kick like a rimfire rifle — perhaps even more. But there’s still one more rifle to test.
by Tom Gaylord, a.k.a. B.B. Pelletier
This report is for blog reader Roger, who has this problem, and also for RifledDNA, who says he has it, too. Fred DPRoNJ (Democratik Peoples Republik of New Jersey), also expressed interest in the topic. I suspect that hundreds of our readers, if not thousands, are curious. Why would a scope that shoots to the left of the aim point at 10 meters be dead-on at 20 meters and off to the right at 35 meters?
Here’s part of what Roger told us:
“This time I’ve scoped a S-410 and something strange is happening. For example: I zeroed the scope for 11m, thus the far zero would be around 44m. When shooting that distance although the elevation is fine the POI shift to right around 7cm. If I re-zero the scope in 44m and shot back to 11m, although the elevation is fine the POI shift to left around 4cm.”
Roger doesn’t state the problem in quite the same way that I do, but it’s the same problem. Gun’s POI changes as the distance changes.
The answer is in the alignment of the scope with the gun’s bore. But before I get to that, I want to address an answer that someone else on the blog gave to Roger. Someone guessed that his problem was caused by spiraling pellets. Pellets sometimes fly on a spiral path as they travel downrange. I wrote about it in this report: Do pellets spiral?
That answer was correct, as far as it went, but there’s one way to diagnose the difference between spiraling pellets and an alignment problem. Spiraling pellets move back and forth from one side of the aim point to the other and back again as they go downrange. Pellets shot from a gun with an alignment problem do not. They’ll start out on one side of the point of aim and move to the other side as they go farther from the gun, but they’ll never come back. It’s a one-way trip for pellets shot from a gun that has an alignment problem.
Don’t blame scope shift
Too many airgunners are willing to blame problems like this on their scopes. They call it scope shift. Real scope shift is rare, though not unknown. If you want to learn more about it, read my article about scope shift.
Scope and barrel must be aligned
The scope and barrel must be pointed in the same direction for the scope to work perfectly. Because the scope has some latitude of internal adjustment, it’s possible for the scope to be out of alignment with the barrel and still have them coinciding at one distance. That distance is called the sight-in distance.
But if they’re not aligned, the shots will be off to one side when they’re closer than the sight-in distance and to the other side when they’re farther away. The drawing below illustrates what this looks like, although I’ve exaggerated the offset so you can see it. In reality, both the scope and barrel may appear to be perfectly aligned.
The axis of the scope (at the bottom on the right) and barrel are offset in this drawing, but the scope can be adjusted so they coincide at one distance. Any closer or farther away than the sight-in distance, though, and the pellet will move to one side of the other. This drawing is grossly exaggerated to highlight the problem in a short space.
How to correct it
To correct this problem, the scope must be positioned on the rifle so its axis is parallel to the axis of the bore. This may be easier than it sounds. If you have 2-piece scope mounts, for example, you can turn each of them around backward (one at a time, of course) to see if that corrects the situation. It often does. You can also swap the front ring for the rear ring for further improvement. There are 4 different possible combinations of scope ring positions with 2-piece mounts (scope rings). If you have 1-piece mounts, all you can do is turn them around backward. That’s why I prefer 2-piece mounts over 1-piece mounts in most situations.
If changing rings isn’t enough to correct the problem, you can shim them. Shimming the rings for sideways correction is the same as shimming for elevation correction — you’re just moving the scope in a different direction. A word of caution — when you shim the rings for sideways adjustment, be careful not to extend the shim too low on the ring; because if it gets under the scope, you’ll cause an elevation problem that didn’t exist before.
What about optically centering the scope?
Optical centering will not solve an alignment problem unless the scope really is in alignment with the bore in the first place, and it’s the internal adjustments that are throwing it off. It’s worth a look, but the odds are it will not be the solution. The best approach is to start out by optically centering the scope to eliminate this from being a cause of the problem.
Now the bad news
Sorry, but almost no scope is ever completely aligned correctly. It’s nearly impossible to do so. The target scopes use bases (and rings) that are separated by much greater length than the scopes we commonly use to minimize the effects of misalignment.
If a scope was perfectly aligned, it would be centered at 10 feet and again at 200 yards. I’ve never seen one that was. They always shift a bit as the distance changes. But they can be very close to the centerline and nobody will be the wiser. You just have to re-zero when you change from a 100-yard zero to a 200-yard zero. Or, if you shoot an airgun, when you change from a 20-yard zero to a 45-yard zero.
But the problem that started this report was a 7 centimeter (3 inches) shift to the right at 44 meters when the rifle is zeroed at 11 meters. That’s too much of a shift and can be corrected by the methods described in this report.
The good news
The good news is that a majority of airgunners will notice this phenomenon and may eventually learn how to deal with it. But the majority of firearms owners don’t even know it exists. They’re still in the world of “bad” scopes that they sell to buy name brand scopes that have to be trusted because they cost so much! In the end, you’re better off knowing the truth.
by Tom Gaylord, a.k.a. B.B. Pelletier
The See All Open Sight is revolutionary!
In the 9 years I’ve been writing this blog, I don’t think this has ever happened before. Last Friday, I wrote about my failure to get the See All Open Sight to work on the Beeman P1 pistol. I tried for 2 straight days to get it sighted in and nothing worked.
That was Friday’s report. Well, I went out to the rifle range on Friday, and my shooting buddy Otho met me there. He had one of his SKS rifles that had a scope mounted on it (on a Weaver base), and it was his plan to test the See All sight. Okay, I thought. Couldn’t hurt.
It didn’t hurt at all! After he shot the scoped rifle at 100 yards for the record, he removed the scope and installed the See All Open Sight. It took several shots to get it on paper at 50 yards, but then he shot a 5-shot group that measures 1.636 inches between centers! You may not be familiar with the accuracy of the SKS, but while it’s an extremely reliable rifle that almost never fails to operate, it’s only fair as far as accuracy is concerned. It’s a good battle rifle — but it’s certainly not a target rifle. Some individual rifles are more accurate than others, and this one happens to be Otho’s best one; but a sub-2-inch group at 50 yards from an SKS is worth talking about. And he did it with the See All Open Sight!
When we saw this 50-yard 5-shot group, we knew the See All sight worked! For an SKS, this is a great group.
When he was finished, we had to walk down to see the target because the cold wind was blowing so hard and our eyes were tearing so much that he couldn’t see but one of the shots through his spotting scope. I was looking through binoculars and could see even less. When I saw the target close up, I asked him to shoot 10 more shots for me at 50 yards.
The reason I asked Otho to test the See All sight in the first place is because he has been battling failing eyes for several years. He can no longer use open sights like he once did, so scoped guns are about all he can shoot. The See All sight makes up for that and allows him to shoot like he used to 30 years ago. That’s what the See All Open Sight is about — a sight that lets shooters mount an open sight on a gun that doesn’t have one, or to use an open sight that can be seen with poor eyesight.
I guess I should also have told you that he did this with Wolf ammo, which isn’t the most accurate by far. Wolf is steel-cased with a mild steel-jacketed bullet. They’re reliable and aren’t corrosive, but there are several brands that will outshoot it.
Otho was able to see the See All sight reticle clearly enough to shoot just as good as when the SKS was scoped!
This SKS has a Weaver base attached to the left side of the receiver. The See All sight is clamped to it.
He then shot a 10-shot group at 50 yards with the SKS and the See All sight. This time he put 10 into 3.215 inches. While that’s a lot closer to what most SKS rifles normally do at 50 yards, I would like to point out that Otho was able to do it without using a scope. That’s significant because he couldn’t see the open sights on the rifle on this day.
This is a good 10-shot group for an SKS at 50 yards. The rifle was shooting Wolf ammo (the dark empty case), which doesn’t group as well as some other brands.
He commented that the See All sight was very fast to acquire. As breezy and cold as the day was, that was significant by itself. I was also shooting an open-sighted rifle that I’ll report on in a few days, and I was unable to see my front sight until I put on my glasses to cut the wind.
Now, Otho shifted to the 100-yard targets, where a few minutes earlier he’d shot a 10-shot group with the scoped rifle. That netted him 9 shots on paper in a group that measures approximately 5-3/8 inches between centers. The 10th shot wandered off the paper.
With the See All sight, he put 9 shots into approximately 5.50 inches. Three of these shots wandered off the paper, but we found the holes clearly on the backer board, just above the target paper. He measured the 9 shots with his pocket knife, which measures 5.50 inches when open. There was a tenth shot on the paper, but it landed about 3.50 inches below the other 9 shots. We know this 10-shot group really measures 9 inches at 100 yards; but since we don’t know where the tenth shot from the scoped rifle landed, there’s no way to make a direct comparison. Nine shots to 9 shots is the best comparison we can make.
With the scoped rifle, 9 of 10 bullets hit the paper at 100 yards. This group measures 5-3/8 inches between centers.
With the See All Open Sight at 100 yards, Otho was able to put 9 shots into 5.50 inches, c-t-c with the SKS. Six of those 9 are on this paper, and the other 3 landed on the backer just above the target. The tenth shot down below does open the group by a lot; but since the tenth shot from the scoped rifle was not found, we can’t make a comparison.
After seeing the 100-yard group, Otho said he thinks the See All Open Sight is perfect for hunting. While it’s not as good for target shooting, it’s fast to acquire a target — especially one that’s running. He’s decided to leave the See All sight on his SKS instead of the scope, and he plans to hunt with it.
I’m so glad this happened because I was beginning to lose confidence. But Otho showed us the sight is good and works as intended.
I have an M1 Carbine that’s chambered in 5.7mm Johnson Spitfire, and it currently has a Weaver base with a scope, as well. I also have a Remington 788 with a Weaver base. I think for my next test of the sight, I’ll load up some ammo and try one of those 2 rifles with a scope and with the See All at 50 yards. They should work the same as Otho’s SKS.
So, don’t despair. There’s at least one more test of this sight coming. For now, however, I have to say the See All Open Sight does what it’s advertised to do.
by Tom Gaylord, a.k.a. B.B. Pelletier
The See All Open Sight is revolutionary!
This will be a different Friday blog — I promise you.
First of all — all talk of machining the See All Open Sight sight is off the table. I spoke with the See All creators and learned that the reticle is actually on film — shrunk to the size where the point of the triangle is 0.0002 inches across. That’s two ten-thousandths of an inch, or 0.00508 millimeters! This in in the realm of optics — not mechanical things. So, don’t try to modify the sight.
Second, they told me some folks may need to wear their glasses when using this sight. I haven’t been doing that, so I wore them for this test.
What I thought might happen today
After the last test in Part 4, I thought the sight might work better if it was held farther from my eyes — like it would be when mounted on a pistol. The magnifying optic enlarges the reticle even more the farther away it is, so this sounded like a possible solution to the reticle being indistinct on target. Also, it’s easier to tilt the sight when it’s mounted on a handgun. I’d hoped that would make it easier to align the peak on the end of the triangle. This is what I was thinking when I told some readers I had a better idea of how to test it.
What went wrong with this test?
When I first attempted to test the sight on Tuesday, I mounted it on a Beeman P1 pistol using an 11mm-dovetail-to-Picatinny adapter that you cannot buy. I used this base because it has some droop, and I thought I needed that droop to get the shots on paper at 10 meters. What I got, however, was pellets striking the target too low after all the upward adjustment in the sight had been made. The results were so bad that I quit testing the sight and moved to something else. I mentioned that in the introduction to Wednesday’s blog.
While I was resting from this first attempt, it occurred to me that maybe this sight works in the reverse of how I was thinking. It has seemed that way every time I attempted to test it. So, for today’s initial test, I turned the base around so it’s sloping up toward the muzzle. The sight was pointed slightly up in relation to the top of the pistol.
For safety, I began shooting at 12 feet. If the gun was off at that distance, it would still be hitting the pellet trap.
I’d already fired a group of 10 7.9-grain Crosman Premier lite pellets at 10 meters with the P1′s open sights. They landed in 0.598 inches, so that was how well I was shooting the gun on this day. I know from experience that the Crosman Premier lite is one of the best pellets in this pistol.
Ten Premier lites went into 0.598 inches at 10 meters with the pistol’s open sights. The P1 can shoot.
It seems I can still shoot my P1. Now, how well can I shoot it with the See All Open Sight mounted? Well, I was right about the droop in the first place. Reversing the mount so it sloped up landed the pellet 12 inches below the aim point at 12 feet! I did need a drooper base after all, and one with the most aggressive slope possible. Fortunately, I had just what I needed, so that base was mounted on the gun and the sight was attached to it.
See the steep slop of the base adapter? It still wasn’t enough to raise the pellet to the point of aim.
With this new steeper-sloped base, the point of impact did rise; but even with the See All sight adjusted as high as it would go, the pellet still struck about 3 inches below the aim point when shooting from 12 feet. And, yes, I did read the adjustment directions as I was adjusting the sight.
I couldn’t get the pellet to strike the point of aim, so on to Plan B. Plan B is where I move the aim point very high and let the pellets impact below. At least that would tell me about the sight’s potential. I used a black dot as an aim point and backed up to 10 meters. When the first shot landed 5 inches below the point of aim, however, the test was over. That is so low that it risks not hitting the entire pellet trap, and that’s a risk I’m not willing to take. Two more inches and the shot goes off the paper.
A 5-inch drop below the aim point was enough to make me stop the test. This is the end of the P1 test.
This test (on the P1) is over
I have tried for two agonizing days to get the See All Open Sight to work on my Beeman P1, and everything has failed to work. I now have more pellet holes in my house (Edith knows about them), and that’s as much damage as I’m willing to do.
I’m not saying the See All Open Sight doesn’t work. There are too many reports that it does work — including one from our blog reader GunFun1. But I’ve done everything in my power to get it to work for me, and you’ve seen the results. My shooting buddy Otho has done the same. He did get better results than I did, but even he wasn’t satisfied with what he got.
I’m going to set the sight aside and just think about it for awhile. If I were testing this item for Pyramyd Air, my recommendation would be “don’t buy” right now. That’s not saying I won’t find a gun it works on; but, for now, I’m pretty burnt out.
by Tom Gaylord, a.k.a. B.B. Pelletier
Today, we’ll look at the Disco Double out at 50 yards. I used the best pellets from the 25-yard test to speed up this test. No sense going over the same ground twice.
The first pellet I tried was the JSB Exact Jumbo RS. It did the best at 25 yards, plus it’s so light, at 13.43 grains, that it gives the rifle a little extra zing.
The rifle arrived at the range filled to 2,000 psi, so I went right to work. I clicked the scope up 5 clicks in elevation to account for the greater distance and began shooting. The day was surprisingly cold — about 28 degrees F. My trigger finger had very little feeling, yet I was able to feel when stage 2 engaged on the trigger every time. That’s important on this rifle because the trigger is very light on stage 2.
There was no wind on the range, which made this a perfect day for shooting a pellet rifle. The first 10 shots went into 1.558 inches between centers. That’s not as small as many 50-yard groups you’ve seen me shoot, but let’s keep testing.
Next up were .22-caliber Crosman Premiers. The first 3 shots went into 2.269-inches and I stopped shooting. These pellets weren’t going to work at 50 yards.
JSB Exact, 15.89 grains
Next up were the heavier 15.89-grain JSB Exact Jumbos that looked promising at 25 yards. They produced a 10-shot group that measured 1.778 inches between centers. It was a little larger than the JSB RS pellet group at 50 yards, just as it was a 25 yards. So far, no prize.
The last pellet I tried was the Beeman Kodiak, which just did fair at 25 yards. Here at 50 yards, they put 10 into 2.458 inches. That’s hardly accurate! I almost stopped shooting this group when I saw how the shots opened up; but I thought that after doing that with the Premiers, I ought to let one go the distance just to show you what it looked like.
Back to the JSB Exact RS
I wasn’t finished with the testing just yet. The rifle was topped off at 2,000 psi again, and I went back to the pellet that was giving me the best results — the JSB Exact RS. The next group of 10 was the tightest of the session, at 1.318 inches between centers. I’d adjusted the scope for the Kodiaks, so this one landed below the bull.
I then shot 2 more 10-shot groups with the RS pellet. The first measured 1.522 inches, and the second measured 1.543 inches. When I examined the target after bringing it back from downrange, I saw a pattern. The RS pellet wasn’t giving tight groups, but they were very consistent. Out of 4 groups, the total variance was 0.24 inches — from 1.3 to 1.5 and change. That’s pretty consistent.
What do we know?
We know this Disco Double can put 10 pellets into 0.365 inches at 25 yards. And with the same pellet, we know that it opens up to about 1.5 inches when the distance is doubled. We know it was warm when the 25-yard target was shot and cold when the 50-yard targets were shot.
And that’s about the only difference — other than I did remove the TKO silencer after shooting 25 yards. I think what I will do next is the following.
1. Clean the barrel.
2. Shoot 5 groups at 25 yards with the JSB Exact RS pellet.
3. Clean the barrel again.
4. Shoot another 5 targets at 50 yards.
One last feature I want to show you is the special optional barrel band Lloyd makes for the Disco Double. It has a Picatinny rail on the bottom, allowing you to attach a bipod at just the right spot with very little extra weight added to the gun.
When I originally tested the .22-caliber Benjamin Discovery rifle in 2007, it was a pre-production prototype that was made out of a Crosman 2260. I shot several approximately half-inch groups at 50 yards with Crosman Premier pellets, but they were 5-shot groups. Now, I’m shooting 10-shots groups that I know are going to be larger. I didn’t use the JSB Exact RS pellet because it didn’t exist back then.
I believe this lightweight Disco Double has more accuracy than we’ve seen to this point. I think it must be capable of shooting at least one 1-inch group out of 5 at 50 yards. So, the test continues.
by Tom Gaylord, a.k.a. B.B. Pelletier
The $100 PCP is built on a Crosman 2100B chassis.
This test was very interesting! It began last week at my outdoor rifle range. Blog reader GunFun1 asked me to try shooting steel BBs in this gun because it was originally built to handle them (when it was in its Crosman 2100B form). I didn’t want to do it because this rifle launches the first couple shots at over 900 f.p.s., and steel BBs rebound like crazy (You’ll shoot your eye out), but I did relent. Last week, I took this rifle to my outdoor range and stuck a 12-inch Shoot-N-C target on the plywood target backer. I then paced off 10 meters and fired 10 BBs at this target.
I thought the BBs would probably miss the target altogether. I said as much to GunFun1 in my comments a few weeks ago. But they didn’t!
I was wrong about this. Shooting offhand with open sights, I put 10 Daisy Premium Grade steel BBs into 1.56 inches. It was actually 11 BBs. I must have miscounted during shooting. I was astounded! This isn’t just good — it’s great! You don’t shoot BB guns at 10 meters when you’re shooting groups!
Incidentally, all 10 BBs apparently went through the plywood target backer. Of course, there are other bullet holes there, so the wood isn’t always present or at its thickest; still, it shows those BBs are moving!
That got me wondering just how accurate this rifle could be. I decided to shoot from 25 yards with open sights, only. I’ll come back and shoot with an optical sight of some kind, but this test is just open sights.
I filled the gun to 2,000 psi for every 10 shots, including for the BBs shown above. After 10 shots, the gun’s pressure has dropped to 1,000 psi.
Crosman Premier lite
The first group of 10 shots was shot with Crosman Premier lites. Based on the 10-meter results for the last test, and also from where the BBs went, I adjusted the rear sight to the right just a little. After the first shot, I looked through the spotting scope to affirm it hit the target. It did, was high above the bullseye and fairly well-centered left and right. So, I left the sights where they were and fired a second shot. When I looked through the spotting scope, I saw it had gone through the same hole as the first! Wow! That was starting out well!
The first 4 shots all went into the same hole. Then shot 5 went higher for some reason.
After taking the picture of the first 5 shots, I shot the remaining 5 shots. That was informative because all the shots spread out to the left. Having the first 5 shots on record allowed me to see that the second 5 were the ones that actually spread out. The 10-shot group measures 1.358 inches between centers.
Next up were RWS Hobby pellets. They did quite well at 10 meters, but 25 yards is about the maximum distance at which wadcutter pellets hold their accuracy.
I adjusted the rear sight down one notch before shooting this group. Once more, I photographed the target after 5 shots.
Air Arms Falcons
The last pellet I tested was the Air Arms Falcon pellet. This time, the first 5 pellets didn’t seem to do that well. And when we see the final 10-shot group, it isn’t that much larger.
Conclusions so far
This experiment is turning out much better than I had hoped. Not only have we demonstrated that it’s possible to make a precharged pneumatic rifle that can retail for under $100, we’re now showing that it can really perform! Of course, the production gun will get many more shots on a fill than the 10 I’m getting, but I do think the maximum fill pressure should be held to 2,000 psi. That will make it easier to build an affordable hand pump, which Dennis Quackenbush is thinking about right now.
The discharge noise of this rifle is quite loud. I was going to recommend not putting a shroud on the gun, but I’m going to change my mind on that point. The customers for this gun will be suburban shooters who need a quieter air rifle, so some sound dampening is necessary.
The trigger on the rifle is heavy, and I would leave it the way it is. I would also leave the bolt-action exactly the way it is on the 2100B. The same goes for the sights. These are refinements people can pay for on higher-priced PCPs. We want to hold the cost of this gun to less than $100 retail.
I do plan on returning to test this rifle at least one more time with an optical sight. That will show the maximum accuracy potential, although I believe we’ve already seen a good indication of it in this test.
The $100 PCP will never replace the higher-priced PCPs that are already selling. It isn’t supposed to. It’s supposed to provide that entry-level step for those who are curious about precharged airguns and don’t want to spend a fortune to find out. I think it’s a very feasible goal and, quite possibly, a profitable one, as well.
by Tom Gaylord, a.k.a. B.B. Pelletier
Length of pull
Before we begin, I want to say a word about the length of pull you get with this adapter. I gave the range of lengths in Part 1 as 14-1/8 inches to 17-1/8 inches, and that turned off many readers. In terms of conventional stocks, that pull range is very long! But Dave Rensing, who invented this adapter, made it for his 8-year-old son and his 7-year-old daughter. The son uses it conventionally, but the daughter collapses the stock past the first detent so it’s even shorter. Fully collapsed, the pull length measures exactly 14 inches but feels like 11 inches.
The AR adjustable stock is not very ergonomic. It stretches and contracts okay, but it doesn’t move in the other directions. It’s a one-size fits none kind of deal — at least from a rifle marksmanship standpoint. While it works very well for fast maneuvering and climbing in and out of tight places, your body has to adapt a lot to make it work.
On the other hand, when the R.A.I. adapter is added to it, the stock becomes almost universal! You can adjust the positions of the comb and the angles of the buttstock through a wide range of attitudes and make it fit almost anyone — young or old. I found when shooting from the bench that even the 15-1/8-inch pull I had initially set up was too short. I had to move the stock back until the pull was 15-7/8-inches before it felt natural again. However, in the offhand position, the 15-1/8-inch pull is the right one. That demonstrates why the adjustable stock works so well on this pistol! You can adjust it to whatever you need in the blink of an eye.
I discovered why this is. The AR adjustable stock has no width. The narrow tube is where your cheek rests, so your eye is closer to the centerline of the pistol than it would be with a conventional stock. The stock also does not drop at the butt, so your head thrusts forward farther than it might with a conventional stock. Instead of sticking up to rest on the cheekpiece, your head tilts forward, along the straight tube. Hence, 14 inches feels more like 11 inches. The Marauder’s pistol grip and close trigger enhance this feeling.
Scope and mounts
I wanted to test the pistol with a really good scope; and the last time I tested the Marauder I used a CenterPoint 3-12X44 compact scope. Leapers was making CenterPoint scopes back then, so this time I attached a UTG 3-12X44 compact scope. My scope is older than the one I linked to, but the optics and overall size are the same. Not only does this scope fit the carbine very well, it gives a crystal clear sight picture that makes aiming so easy.
I needed to get the scope high off the receiver because the Marauder pistol has a circular 8-shot magazine that sticks up above the receiver top. You can see it in the above photo. Also, the stock’s straight line puts my head higher than it would normally be. So, high scope rings are in order. I selected a pair of BKL 30mm high rings that have a single-screw top strap. The Marauder pistol doesn’t recoil, so these rings can be made thinner and still be strong enough to hold this scope. Once they were mounted, I noted they brought the scope’s exit pupil directly to my eye, making them the perfect height.
Testing the Marauder carbine
I tested this Marauder pistol extensively, back in 2010/2011. I already knew the right fill pressure (2,900 psi), the best pellet (.22-caliber Beeman Kodiak) and the effective number of shots per fill (32). Since it has an 8-shot magazine, I shot 8-shot groups instead of 10.
Sight-in went quick, and then I backed up to 25 yards and started shooting. The first group of Kodiaks was the second-best of the session, putting 8 into 0.554 inches. Looking back at the tests I did years ago, I wasn’t shooting as well on this day as I did back then. I shot a total of six 8-shot groups, and the largest one was 0.607 inches, while the smallest was 0.504 inches between centers.
While these groups are okay, they aren’t as small as the groups I shot previously. I don’t think it was me or the gun. In this case, I think it was the pellet. I used a different tin of Kodiaks in 2010, and they grouped much tighter in this pistol than these did. The best group back then was 0.405 inches between centers. Maybe they had larger heads, or maybe they were just different in some unquantifiable way.
I tried a number of different pellets in the Marauder pistol, but none of them did very well. JSBs of various weights, which I thought would do well, sprayed all over the place. I know from testing the gun that it wants a fat pellet, and the Kodiak is a good one for that. It’s slow, at an average 584 f.p.s., but even at that it produces about 16 foot-pounds of muzzle energy. That’s pretty good for an air pistol! Certainly enough for some hunting and pest elimination.
The rest of the test
I plan to take this pistol to the 50-yard range, so you’ll see the results of that. But I don’t think that’s quite the right way to test the R.A.I. adapter and adjustable stock. We already know how well the pistol performs. Now, we want the focus to be on the adapter and the stock.
Maybe I can put the gun in the hands of some other shooters and see how well it fits them. Perhaps, that’s the best way to evaluate this item. I don’t know, but I guess we’ll see.