Posts Tagged ‘Crosman Powershot Penetrator pellets’

Benjamin Trail NP pistol: Part 6

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

Part 1
Part 2
Part 3
Part 4a
Part 4b
Part 5

Benjamin Trail NP pistol
Benjamin’s new Trail NP breakbarrel pellet pistol, with cocking aid removed.

We’re certainly getting a good look at the Benjamin Trail NP pistol! While the title says this is Part 6, it’s actually the 7th report because Part 4 was so large it had to be broken into two parts.

Let’s look at the performance of the pistol after break-in. This test pistol has been shot so much that it’s now broken in, so today we’ll look at the velocity. Crosman says in the owner’s manual that the pistol needs several hundred shots before it’s fully broken-in, and this gun certainly has that many shots through it.

They also say the gun will become quieter after a break-in, and the test pistol is certainly quiet now. Apparently, some guns have detonated and surprised their owners, so Crosman is being conservative in its explanation. The test Trail NP pistol has never been very noisy.

I’ll report the velocity of each pellet before and after the break-in period, so you can compare them.

RWS Hobby
The first pellet I tested was the 7-grain RWS Hobby. It’s normally the fastest lead pellet in almost any airgun.

RWS Hobby pellets

Crosman SSP hollowpoint
The Crosman SSP hollowpoint is a 4-grain, lead-free pellet that’s shaped like a wadcutter but with a deep hollow point. Being so light, it’s a real speed demon.

Crosman SSP hollowpoint pellets

Crosman Powershot Penetrators
Crosman Powershot Penetrators are synthetic-jacketed pellets that have a metal core. They weigh 5.4 grains and loosely fit the bore of the Trail NP pistol.

Crosman Powershot Penetrator pellets

Crosman SSP pointed
Crosman’s SSP pointed pellet is another 4-grain, lead-free pellet. You’d expect it to have about the same performance as the SSP hollowpoints, but this pellet isn’t sized as well as the hollowpoint. Consequently, they fit the bore variably, which affects the velocity.

Crosman SSP pointed pellets

JSB Exact RS dome
The last pellet I tried was the JSB Exact RS dome. It weighs 7.3 grains and fits the bore loosely.

JSB Exact RS domed pellets

So there you have it. All 5 of the pellets shot slower after the break-in, and all but one had more consistent velocity spreads. Clearly the Benjamin Trail NP pistol does break in as the company states in the owner’s manual.

This report has been a look into the performance of a spring-piston air pistol as it breaks in. We’ve seen the way to maximize the accuracy of the airgun, and we’ve learned how to overcome the too-tall front sight post. I hope this experience has been of benefit to the new shooters and perhaps provides a template of how a spring gun breaks in.

Benjamin Trail NP pistol: Part 5

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

Part 1
Part 2
Part 3
Part 4a
Part 4b

Benjamin Trail NP pistol
Benjamin’s new Trail NP breakbarrel pellet pistol with cocking aid removed.

Before we begin today’s report, a word about my late friend, Earl (Mac) McDonald. His family has set up a memorial page in his name to collect finds for research into the causes of Creutzfeldt-Jakob disease, which is one of the names prion disease goes by. Most of you knew Mac only through his writing and testing here on the blog; but a few of you were friends with him through this hobby, and I thought you would like to know about this.

Today, we’ll continue testing the Benjamin Trail NP pistol. Although today’s title says Part 5, it’s actually the 6th report because I had to break Part 4 into sub-parts a and b.

We’ll look at the accuracy of those 3 lead-free pellets that Crosman provided with the test pistol. As before, I’m shooting at 10 meters, and the gun has a red dot sight mounted. I’ll describe all the other shooting conditions as we go. It has been so long since I last tested this air pistol that I had to read both parts of the fourth report to find out how to shoot the pistol for the best results.

I decided to shoot everything with the cocking aid attached. My testing demonstrated that it didn’t hurt the accuracy, and in a few cases it seemed to help it. At any rate, it makes the pistol easier to cock, so I left it on for this whole test.

Crosman Powershot Penetrators
The first pellet I tested was the Crosman Powershot Penetrator. It’s a synthetic-bodied pellet with a heavy non-lead metal core. They fit loosely in the breech, so I seated them flush but did not try to seat them deep. Since some of my best shooting was with the gun rested directly against the sandbag last time, I decided to start out that way. Imagine my surprise to see a near-pinwheel shot with the first pellet! [A pinwheel is a shot in the exact center of the target, and it refers to taking out the extremely small 10-ring of a smallbore target so that just the white scoring ring remains behind.] The shot was so good that I stopped and took a picture of it to show you — in case history was about to be made. This happens about one time every ten thousand shots or so for me, and it’s usually by pure chance. It is, however, the sort of thing that gives rise to lies and legends and is probably the basis for the Cargo Cults.

Benjamin Trail NP pistol
Just in case I was about to make history, I photographed the first shot of the Benjamin Trail NP pistol with Crosman Powershot Penetrators.

Benjamin Trail NP pistol
Shot No. 2 (at the bottom of the picture) made it clear that the first shot was a happy accident. Resting the pistol directly on the sandbag was not the thing to do!

Much as I would have loved to bask in the radiance of that first shot, shot No. 2 dispelled the miracle. Pellet 2 landed 4 inches south of the first one, humbling me once more.

Here’s a lesson in testing airguns. When something goes wrong like this, and all your experience says that it should have been wrong to begin with (resting a spring gun directly on a sandbag), take the hint and change your ways. So I did. I moved my hands forward of the bag and held the gun with no part of it touching anything except me. Then, I shot 10 more shots into a very decent group that measures 1.587 inches between centers. In the grand scheme of things, it’s not a bad group for this pistol. Not the best by any means; but for lead-free pellets, it’s not bad.

Benjamin Trail NP pistol
Resting the arms on the sandbag and holding the pistol free was the way to go. Ten flush-seated Powershot Penetrators made this 1.587-inch group at 10 meters.

Crosman SSP hollowpoints
Next, I tried the SSP hollowpoint pellets seated flush and with my arms resting on the bag but the pistol not touching it. This was how I held the gun for the remainder of this report. This time, 10 pellets made a slightly smaller group — measuring 1.513 inches. Amazing! Who would have thought that lead-free pellets could be so accurate?

Benjamin Trail NP pistol
Ten SSP hollowpoints seated flush made this 1.513-inch group at 10 meters. This is a decent group for lead-free pellets.

This pellet fit the breech tighter, so I figured I could try to seat them deeply. Next, I shot 5 of the same SSP hollowpoints seated deep with the Air Venturi Pellet Pen and Pellet Seater. When the first 2 pellets landed very close to each other, I thought I might be on to something; but after 5 shots, I knew differently. I had a vertical string that measures 2.013 inches between centers. It’s very tight side-to-side, so I was holding the pistol okay…but the velocity of the pellet was way off, shot-to-shot.

Benjamin Trail NP pistol
It took only 5 shots to learn that nothing was gained by seating the SSP hollowpoints deep. Group measures 2.013 inches.

Allow me to explain what I mean by the velocity was off. I’m not referring to the velocity from the muzzle to the target. At 10 meters, you can vary the velocity by 50 f.p.s. and not affect the group that much. But the time the pellet remains inside the barrel while the gun is moving affects things greatly. That is what I mean by the velocity affecting things. I really mean the pellet dwell time inside the barrel because that determines where the muzzle will be when the pellet exits. Obviously, when this pellet is seated deep, that time varies enough to affect where the pellet strikes the target — even at 10 meters.

The bottom line — deep-seating is out for this pellet. And another testing tip — I don’t need to fire a second 5 shots to figure that out. I can stop here and move on with the test.

Crosman SSP pointed pellets
The last pellet I tried was the Crosman SSP pointed pellet. This is another lead-free pellet. Instead of a hollow point, it has a pointed tip. The weight is the same 4 grains as the SSP hollowpoint. I seated them flush with the breech and started to shoot, but they were hitting so low that some were below the target paper. So, I stopped and adjusted the red dot sight up several clicks, then started the group all over. Ten pellets landed in a 5.004-inch group that told me the test was over. Sure, I could have tried seating these pellets deep or holding the pistol directly on the sandbag, but this huge group told me it wasn’t worth the effort. What was the best I could do — shade the hollowpoints by a fraction of an inch? No, I know when to hold ‘em, and I also know when to fold ‘em. Now, it was time to end the test.

Benjamin Trail NP pistol
When your target looks like this, you’ll know what to do.

Impressions so far
I remain impressed by the Benjamin Trail NP pistol. For the money, it offers performance well beyond what most airguns of equivalent price can give you. It’s an air pistol you must be dedicated to, however, because it takes some getting used to. But for smashing power with decent accuracy, I can’t think of another spring pistol in this price range that does as well.

There is still one final test to do. I want to rerun the velocity test. That will establish if the hundreds of shots we’ve given this pistol to this point have finally broken in the gun.

Benjamin Trail NP pistol: Part 3

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

Part 1
Part 2

Benjamin Trail NP pistol
Benjamin’s new Trail NP breakbarrel pellet pistol, with cocking aid removed.

Accuracy day has arrived. And this is going to be a report that’s different than the ones I normally write because I decided to do things differently with the Benjamin Trail NP pistol. First of all, there’s some interest in the gun. Readers have said they’re watching the reports because this gun seems to deliver a lot of performance for a very reasonable price.

Next, I’ve read some owner reviews that talk about the gun hitting low. I wanted to test that for you. Owners also say the pistol shoots to two different impact points, depending on whether or not the cocking aid is attached.

Finally, I received a call from Crosman’s head engineer, Ed Schultz, who noticed I was testing the pistol now. Ed confirmed that the pistol does indeed shoot to two different points of impact, depending on whether or not the cocking aid is attached. He was also intrigued by how much I seem to like the air pistol, so we chatted about that for awhile.

How this test will be different
I decided to “play” with this pistol today instead of plowing through a formatted test with X number of pellet types. What that means is that I decided to let the pistol lead me through the test, and to look at those things that were interesting — even if they didn’t conform to my normal test format. I think the test went well, but it lead me in directions I might never have taken otherwise.

It shoots low
The first pellet up was the RWS Hobby. The first shot wasn’t even on the paper, so I elevated the rear sight as high as it would go, then I held up the front post above the rear notch in a style that was popularized by Elmer Keith. That got me on paper, and I put 10 shots through the gun. They landed in a group that measured 1.155 inches between centers. This turned out to be the best group of the test, and I think it shows the accuracy potential of the pistol quite well. You see, I was estimating how much front post to hold up above the rear notch while I shot this group, so my aim point was only an estimate.

Benjamin Trail NP pistol Hobby group
Ten RWS Hobby pellets made this 1.155-inch group at 10 meters. This was with a Keith holdover sight picture, as described in the text.

Open sights Benjamin Trail NP air pistol
When Elmer Keith wanted to shoot handguns farther than their sights would allow, he used this holdover sight picture. Keith inlaid gold lines on his front sights, but I am simply estimating the height from shot to shot.

Even when I held over a lot, the pellets landed below the aim point. So, I used another trick by drawing a secondary aim point above the main bull and using the holdover sight picture on it (at 6 o’clock). My sight picture now looked like the drawing above.

Powershot Penetrators
Next, I tried the lead-free Crosman Powershot Penetrators. Using the higher aim point, I put 10 of them into a group that measured 2.527 inches between centers. Obviously, they’re not right for this pistol.

Different impact point?
I told you I was playing with the pistol, so next I tried an experiment to see the difference in point of impact when the cocking aid was left on the gun or removed during firing. And there was a difference! For this test, I used JSB Exact RS domes.

I used the same high aim point, and the pellets landed about 2 inches lower when the cocking aid was left on the barrel during firing. I’ll show both groups on the same target, so you can see what that looks like.

The group fired with the cocking aid installed was slightly tighter than the one with it removed. The one with the cocking aid measures 1.369 inches between centers, while the other group measures 1.636 inches.

Benjamin Trail NP pistol JSB Exact RS groups
Here are two groups of JSB Exact RS pellets. One was fired with the cocking aid installed, and the other with it removed. Notice the difference in the point of impact.

Cocking effort
I reported that the cocking effort is low for this pistol. Well, that’s fortunate; because when I shot it without the cocking aid, I also cocked it that way. The effort required with the aid installed still measures 25 lbs., and with the aid removed it increases to 35 lbs.

Noise
This time, I shot the pistol indoors, and I still must say that it’s very quiet for the power. I think some new owners may have had a few detonations when their guns were new and thought their pistol was going to always be that loud, but I doubt that many will fault it for the sound after it calms down.

Trigger
The trigger-pull isn’t so much heavy as it is long. It does take some concentration and even discipline to shoot the pistol at its best. But there’s no creep in the second stage.

Crosman Premier heavies and JSB Exact 10.34-grain heavies
I had thought that heavier pellets might do best, so I tried both Crosman Premier heavies and JSB Exact heavies. Since I was just playing with the gun instead of conducting a formatted test, I decided that if either pellet didn’t show any promise by 5 shots, I wouldn’t complete the group. Well, neither one did, so I ended each group at just 5 shots. Both would have been over 2 inches for 10 shots.

Crosman Premier lites
The last pellet I tested was the 7.9-grain Crosman Premier lite, figuring that if the heavy didn’t group, the lite might. And that was correct. The lites gave me a 1.775-inch group, which doesn’t sound good. But 9 of those pellets are in 1.314 inches, which is a lot better.

Benjamin Trail NP pistol Crosman Premier lite group
Crosman Premier lites showed some promise in the Trail NP pistol, grouping 10 in 1.775 inches, with 9 in 1.314 inches.

What’s the verdict?
The verdict is — it’s too soon to tell. I still have some things to test with this pistol. For starters, the sights that are on the gun are so problematic that I want to try it with a good quality dot sight and see what I can do. If I can adjust the sight so I’m able to aim at what I’m hitting, and if I use the 3 pellets that worked well in this test — RWS Hobbys, JSB Exact RS and Crosman Premier lites — then we might just see a more accurate gun.

I also want to test pellets that are seated deep in the breech to see if there’s any difference. There are the two lead-free pellets that Crosman sent, but I didn’t get around to testing this time. I’d also like to run a velocity test after all of that because, by then, I think the gun should be broken in.

More than ever, I think Crosman should build this gun as a carbine, using exactly what they have here but with an extended barrel shroud and a rifle stock. As easy as it is to cock as a pistol, I can see it losing another 10 lbs. of effort as a carbine. What a wonderful little plinker it would make!

Benjamin Trail NP pistol: Part 2

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

Part 1

Benjamin Trail NP pistol
Benjamin’s new Trail NP breakbarrel pellet pistol with cocking aid removed.

Okay! The moment of truth has arrived. It’s velocity day for the Benjamin Trail NP pistol that claims to shoot 625 f.p.s.

I am still at my friend Mac’s home on Maryland’s eastern shore, so I brought the chronograph with me. I also brought some pellets I wanted to test, as well as all 3 types of lead-free pellets that Crosman sent with the pistol.

RWS Hobby
The first pellet I tried is the lightweight lead RWS Hobby. This pellet fits the bore very tight, so I may come back and test it seated after the accuracy test. Seated flush, they averaged 494 f.p.s. The range went from 477 to 509 f.p.s. That’s a spread of 32 f.p.s. Remember that Crosman said this pistol would have a wide velocity range for several hundred shots when it breaks in. At the average velocity, this 7-grain pellet generates 3.79 foot-pounds of energy at the muzzle.

I can hear the naysayers warming up now. But hold onto your skirts, because this pistol is about to come alive.

Crosman SSP hollowpoint
The first pellet that Crosman sent me to test with the pistol was their lead-free SSP hollowpoint. This one weighs exactly 4 grains and looks like one of those new high-performance hollowpoints that performs well at lower speeds. In the NP, the average velocity was 632 f.p.s., so that substantiates the Crosman claim. The spread went from 531 to 697 f.p.s., but that first shot was way out-of-profile. The second slowest shot was 597 f.p.s., and the bulk of the shots ran between 630 and 660.

So — what’s the power of these lightweights? How about 3.55 foot-pounds? However, I don’t think this string is really representative of the pistol because of the other SSP pellet I tested later.

Crosman Powershot Penetrators
Next I tried Crosman Powershot Penetrator. They are a synthetic-bodied pellet with a metal nose. Crosman guarantees them to be 20 percent faster than lead pellets. They weigh 5.4 grains, and in the NP pistol they averaged 576 f.p.s. The spread went from 561 to 586 f.p.s., so it’s tightening up quite a bit. I do feel this is more of the break-in process, rather than the specific pellet, though I don’t want to take anything away from these Powershot Penetrators.

Like the SSPs, this pellet also fit the bore loosely. And the average energy was 3.98 foot-pounds of energy at the muzzle. I really can’t wait to see how accurate these are because they look like they might have a lot going for them.

Crosman SSP pointed pellet
The next pellet tested was the Crosman SSP pointed pellet. Like the SSP hollowpoint, it also weighs 4 grains, yet this one went so much faster on average that I believe the pistol was breaking in right in front of my eyes. The average was 685 f.p.s., with a spread from 667 to, get ready for it — 704 f.p.s. Yes, the pistol broke the 700 f.p.s. level with lightweight pellets. Crosman has to advertise the highest velocity the pistol is capable of achieving, so setting the bar at 625 f.p.s. is conservative.

At the average velocity, this pellet generated 4.17 foot-pounds of energy at the muzzle. Because it weighs the same as the hollowpoint SSP and fits the bore the same, I think the pistol is still breaking in.

JSB Exact RS
The last pellet I tested was the JSB Exact RS dome. I included it because of the accuracy potential. Although it’s light like the Hobby, it has a thinner skirt, so it was anyone’s guess how it would do in this pistol (because the gas piston is known for blowing pellet skirts out from the sudden pressure spike).

They averaged 487 f.p.s., but the range was tight — from 480 to 499 f.p.s. At the average velocity, this 7.3-grain pellet developed 3.85 foot-pounds of energy at the muzzle.

Trigger-pull
Next, I weighed the trigger-pull. It is two-stage, and stage one weighs about 3 lbs., while stage two breaks at 7 lbs., 3 oz. on the test gun. I have to observe that the design of the grip makes the trigger-pull seem a lot lower. I had guessed it to be 5 lbs. before putting the gauge on it.

Sound
I shot this test outdoors, so the sound was different than usual. But I must say the discharge is very quiet for a gun of this power.

Cocking assist
This pistol remains easy to cock. In fact, I shot it about 60 times in this test because there were a number of shots that didn’t register on the chrono. And I wasn’t tired at all at the end of the shooting. This is an all-day gun for sure.

But the cocking assist came off the muzzle a couple times as I was closing the barrel. It held tight when the barrel was cocked, but popped off several times when the barrel was closed. The trick is to not hold it out at the end, but, instead, under the muzzle when you close the barrel.

Cocking effort
The pistol cocks with exactly 25 lbs. of force. The effort ramps up to 25; and just when you think it will go even higher, it drops off. This is an all-day air pistol for any adult. I don’t know how they did it, but the Crosman engineers are to be commended.

Impressions so far
I’m still very impressed with this pistol. It cocks easier than I thought possible and shoots smoother than it should for the price. I can’t wait to see what it can do on targets!

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