Benjamin Trail Nitro Piston 2: Part 4
by Tom Gaylord, a.k.a. B.B. Pelletier
This report covers:
• Accuracy day…part 2
• Things that were done
• Ten meters
• The hold
• 25 yards
• Velocity with Premiers
• Overall evaluation
Accuracy day…part 2
Today, we return to the Benjamin Trail Nitro Piston 2 air rifle. I think I’ve solved all the mysteries and finally got the rifle to shoot the way it should. You be the judge.
Things that were done
Several things were done to make the rifle ready for today’s test. First, I cleaned the barrel with J-B Non-Embedding Bore Cleaning Compound on a bronze bore brush. To do that, I removed the barrel shroud and the baffles, so access to the barrel was easy. I cleaned from the breech. Since the NP2 has a gas spring, I could leave it cocked as long as I wanted without hurting the spring.
Next, I replaced the 3-9X32 CenterPoint scope that comes with the rifle for an older CenterPoint 3-12X40 scope that has an adjustable objective. Now, I was able to focus the scope on the target at 25 yards. CenterPoint no longer carries this scope that was made by Leapers, but it’s equivalent to this 3-12X40 UTG scope with AO, except that my scope doesn’t have an illuminated reticle.
I shimmed the replacement scope with one thin slice of plastic under the scope tube at the rear ring; because when I removed the factory scope, I noticed that it was adjusted toward the top of its range. I just wanted to make sure the reticle wasn’t floating in the replacement scope because the NP2 has a healthy jolt when it fires. No vibration, but there’s definite movement.
I tightened all the stock screws but found they were mostly tight already. That was when I noticed there’s no front triggerguard screw. The rear screw is the one that holds the action to the stock, and the front has no screw at all — yet there’s a hole in the guard for one. Some companies might be tempted to put a wood screw there to fool you, but that would just invite stripping the hole in the wood stock since the front screw is nearly always the one that gets tightened. Crosman made it foolproof.
I sighted-in at 12 feet and was on paper with the first shot. In all, I fired four shots to get where I wanted to be at 10 meters. I continue to shoot .22-caliber Crosman Premier pellets in this rifle for this whole test. Once I was sighted-in, I backed up to 10 meters and shot a 5-shot group.
I was still experimenting with holds at this point. I had already spent a whole day shooting the rifle with the factory scope and trying different holds (I didn’t tell you about that day or bother to report it), but a comment from a reader got me thinking. Reader Ben told me to hold the rifle more firmly and also to slide my off hand farther out under the forearm. He reminded me of what I knew but had temporarily forgotten — namely that gas spring guns need a different hold. So, I followed Ben’s suggestions, and they resulted in a 0.319-inch 5-shot group at 10 meters!
Okay, that’s just at 10 meters. I know a lot of you do shoot at that distance, and I also know that many people shoot 5-shot groups. This is what the NP2 can do at that distance with 5 Premier pellets.
But you really want to see what it can do at 25 yards. And you want to see 10-shot groups. I adjusted the scope reticle down for 25 yards and started shooting.
Before I continue, let me describe the hold I’m using today. It’s not an artillery hold. I’m grasping the pistol grip firmly, but not with a death grip. And my off hand is slid out far enough that it’s touching the sling swivel on the forearm. I don’t grasp the forearm tightly, but I do grasp it with my fingers. Having my hand out that far, the rifle doesn’t want to move left or right. So, when the off hand gets settled, the crosshairs stay on target as I relax.
Relaxation is very important with the NP2. Every time I became anxious about where the next shot was going, I threw it wide. But when I relaxed, the shot went to the aim point, as you’ll soon see.
The first group of 10 went into 0.931 inches. It’s better than the best group fired in the last test, which tells me that something I did helped out. Cleaning the barrel, tightening the screws, changing the scope or changing the way the rifle is held seems to have made the difference. But I thought the rifle could do even better.
The second group is larger than the first, but the 3 pellets that missed the main group were all from my tension. When I relaxed, all the pellets went into the central group. Ten shots went into 1.333 inches, but the central 7 are in 0.656 inches. I think they represent the true accuracy of the NP2. This is the importance of relaxing when shooting this particular air rifle.
This group was the most revealing. When I shot totally relaxed, the pellets went to the central group. When I tensed up for any reason, they went wide. Ten shots in 1.333 inches and 7 in 0.656 inches. I believe the NP2 can shoot as well as the central group indicates.
But you’re skeptical, and I would be, too. The concentration needed for every shot (making certain I was relaxed) was tiring me, but this rifle deserved the best I could give, so I shot one more 10-shot group at 25 yards. This time, I relaxed for each shot — the way I would tell someone else to do. You know — do as I say! This time, 10 pellets went into 0.704 inches. This, I believe, represents the level of accuracy of which this particular Benjamin Trail NP2 is capable.
Velocity with Premiers
One last thing to do. I told you that the cocking effort had dropped to 32 lbs. after the last accuracy report. With all the shooting I’ve done the rifle now has over 150 shots on the powerplant. I tested it again today, and it still cocks right at 32 lbs. The last velocity test had Premier pellets averaging 793 f.p.s. with a 40 f.p.s. spread. This time 10 Premiers averaged 745 f.p.s. and the spread was only 8 f.p.s.!
I know the gun shoots slower now; but given the wide variation before, I think it’s now settled into what it’s going to do. At 745 f.p.s., the Premier cranks out 17.63 foot-pounds of energy at the muzzle.
I think Crosman has made a nice new breakbarrel rifle with the NP2. It doesn’t vibrate, it cocks easier than other gas-spring guns in its power range, the trigger is crisp, the report is quiet and the rifle is accurate. For $250, this is about as nice a spring gun as you can find.
Yes, the power is not at the level Crosman advertises; and yes, the gun does kick — but it still gives you a lot of value for the money spent. The bad press at launch time is going to keep some shooters from giving the NP2 a try. That’s too bad because this is a rifle many of them would like.
I’ve tested this rifle openly and allowed you to see exactly what happened, as it happened. Crosman has sent another NP2 for me to test and I plan on testing that one for you as well. So, it ain’t over yet.