Posts Tagged ‘Gamo Raptor PBA pellets’
Gamo P-25 air pistol: Part 3
by Tom Gaylord, a.k.a. B.B. Pelletier

Gamo P-25 is a 16-shot blowback pellet pistol.
Today is accuracy day with the Gamo P-25 air pistol. I inserted a fresh CO2 cartridge into the gun, loaded both of its 8-shot rotary clips and then slid the magazine into the grip.
I shot the pistol at 10 meters, which seems appropriate for a gun of this type. I shot it rested with a two-hand hold and my arms resting on the sandbag but the pistol free to move.
The pistol has open sights that are not adjustable. They have white dots, both front and rear, but that was cancelled by lighting the target brightly and shooting from a dimly lit place. I used a 6 o’clock hold, and the sights were very sharp and easy to align.
Because each rotary clip holds 8 pellets, I shot 8-shot groups instead of the usual 10. I don’t think it makes a big difference; and when you see the targets, I think you’ll agree.
The P-25 has blowback, so every shot except the first is single-action. I therefore cocked the hammer for that first shot, so all shots were single-action. It’s the most accurate way to shoot any handgun.
RWS Hobby pellets
The first pellets I shot were RWS Hobbys. Because they’re wadcutters, they left good holes in the target paper that were visible from the firing line. The pistol shot Hobbys to the left, as you can see, but the elevation was pretty good. The pistol’s sights are not adjustable, so to move the shots means you have to either aim off or use some Kentucky windage.
The group isn’t very impressive — 8 shots in 2.169 inches at 10 meters. Perhaps one of the other pellets will do better.

Eight RWS Hobby pellets went into 2.169 inches at 10 meters.
Gamo Match pellets
The next 8 pellets I shot were Gamo Match wadcutters. These pellets will sometimes be very accurate in a particular gun, but the P-25 I’m testing isn’t one of them. Eight shots went into 2.894 inches, though 7 of them are in 1.846 inches. Still, neither group size is especially good. They did go to approximately the same point of impact as the RWS Hobbys, however.

Eight Gamo Match pellets went into 2.894 inches at 10 meters.
Crosman Premier lites
Next, it was time to try some 7.9-grain Crosman Premier lites. These domed pellets are sometimes the very best in certain airguns. And this was one of those times. Eight of them went into 1.624 inches, though they also went way over to the left.

Eight Crosman Premier lites went into 1.624 inches at 10 meters. This was the best group of this test.
Gamo Raptor PBA
The last pellet I tried was the lead-free Gamo Raptor PBA. We know from the velocity test that these pellets go the fastest in the P-25, but now we’ll see how accurate they are.
And the answer is — not very. Eight PBA pellets made a shotgun-like pattern that measures 4.036 inches between centers. Interestingly, they did tend to group in the center of the target — the only pellet of the 4 tested to do so.

Eight Gamo Raptor PBAs went all over the place, making this 4.036-inch group. I had to reduce the size of the photo to get all the holes into it.
Shooting behavior
This was one time I found myself hoping for greater accuracy from the test gun because it was so much fun to shoot. The blowback action is quick, crisp and comes as close to the recoil of a .22 rimfire pistol as I think I’ve experienced in an air pistol. Although the trigger is long and full of stops and starts, it’s also light and can become predictable after you learn its quirks.
Bottom line
The lack of adjustable sights means you have to find a pellet that shoots to center and is also accurate. Good luck with that. If Premier lites had shot to the center, they would have made this test end on a higher note. Because it shoots lead pellets from a rifled barrel, I’d hoped for better accuracy than this. Had I seen it, I would have rated this Gamo P-25 a best buy.
Gamo P-25 air pistol: Part 2
by Tom Gaylord, a.k.a. B.B. Pelletier

Gamo P-25 is a 16-shot blowback pellet pistol.
Today, we’ll look at the velocity of the Gamo P-25 air pistol, and something interesting that happened. Normally, I report on the velocity of 3 or 4 pellets and leave it at that, but a strange thing happened with the first CO2 cartridge in the test pistol.
I didn’t screw the piercing screw deep enough into the CO2 cartridge, resulting in the gas flow being hindered. I’ve experienced this a few times in the past, but this time it was very pronounced. After each shot, there was a period of time that ranged from 5 to 10 seconds, during which the gas flowed audibly from the cartridge into the gun’s valve. It sounded like a leak in the gun, but I noticed it only lasted a few seconds before stopping, so it wasn’t venting to the outside. It was the gas flowing from the cartridge into the gun’s valve, where it would be used for the next shot.

The piercing screw wasn’t turned in far enough to properly pierce this cartridge. You can’t even see the opening through a 10X loupe, but it’s there. This was operator error.
Shooting the pistol in the rapid-fire mode proved impossible with this first cartridge. The first shot went out at the normal velocity, and shot 2…fired immediately after the first shot…clocked 88 f.p.s. through the chronograph.
It was my fault
So, I screwed the piercing screw much deeper into the next cartridge. Problem solved! Don’t be tentative when piercing a cartridge in this pistol. Do it like you mean it. After I pierced the second cartridge correctly, the pistol performed exactly as expected. Rapid-fire worked as you would expect, and the gun kept up with my trigger finger.
Hobby
The first pellet I tested was the RWS Hobby. Weighing 7 grains, the all-lead Hobby pellet tells me so much about an airgun’s powerplant. For starters, it tells me what needs to be done to get the 425 f.p.s. velocity that’s claimed for the gun.
Hobbys averaged 353 f.p.s. in the P-25. They ranged from a low of 333 to a high of 379 f.p.s., and some of that large variance may be due to the gas flow problem I mentioned. At the average velocity, Hobbys were generating 1.94 foot-pounds of muzzle energy.
The Hobbys told me what I wanted to know. This pistol wasn’t going to get its rated velocity with a lead pellet. So, I needed to try it with a lead-free pellet; and since this is a Gamo gun, the Gamo Raptor PBA sounded like a good selection.
PBA
The Raptor PBA pellet is made from metal that’s harder than lead. It weighs 5.4 grains and will generally boost the velocity of an airgun above what a lead pellet will, though the hardness of the metal actually slows it down sometimes. But in the P-25, the Raptor PBAs worked just fine. They averaged 412 f.p.s. and ranged from a low of 395 to a high of 432 f.p.s. So, the ads are right on the money. At the average velocity, this pellet generates 2.04 foot-pounds of energy.
Gamo Match
Next up were the lead Gamo Match wadcutters. They weigh 7.56 grains and are sometimes quite accurate in some guns. In the P-25, they averaged 348 f.p.s. with a spread from 329 to 357 f.p.s. The average energy was 2.03 foot-pounds. This will be a pellet to try in the accuracy test.
Crosman Premier 7.9-grain lites
The last pellet I tested was the 7.9-grain Crosman Premier lite. They fit in the circular clips of the magazine rather easily, which caused some concern they might fall out; but the way the magazine is designed, only 2 pellets at a time are exposed in its clip. So the worry was for nothing.

The way the magazine is designed, the pellets are not exposed until they’re ready to be shot. This one needs to be pressed into the clip.
Premiers averaged 344 f.p.s. in the P-25, with a spread from 330 to 360 f.p.s. At the average velocity, they generate 2.08 foot-pounds at the muzzle.
Trigger-pull
The double-action trigger-pull broke at exactly 8-1/2 lbs., which is light for a DA pull. On single-action, it broke under 4 lbs., with a huge creep at 2-1/2 lbs. That creep is consistent and lets you know when the gun is ready to fire.
Shot count
While I got just 50 shots on the first cartridge, I got more with the second one. Besides the velocity testing, I did another test with an entire cartridge, just to see how the pistol operates in the rapid-fire mode. So, the correct piercing is very important. I fired an entire cartridge, just to see how the pistol handled. Everything worked smoothly until shot 48, when the blowback failed for the first time. After that, the blowback would work if I waited long enough between shots, but not if I shot rapidly. However, if you allow time for the gun to warm up, it keeps right on shooting.
There are certainly 75 or more powerful shots in the gun if you allow the gun to rest between shots. The blowback will work reliably past shot 50, as long as time is taken between shots. Shoot fast, however, and the gun cools too much and wastes gas.
Impressions so far
So far, I like the P-25. I like its simplicity and the light single-action trigger. If it’s also accurate, this might be a best buy.
Testing non-lead pellets: Part 2
by B.B. Pelletier
This is a long-term test of non-lead pellets that began nearly a year ago. There’s a lot of pressure these days to abandon lead for projectiles and move to some other substance that’s not as toxic. The problem is that there isn’t any material as good as lead. Ammunition companies have been working on this project for decades, and they’ve yet to come up with a substance that can take the place of lead.
I don’t want to get into the discussion of the evils of lead in this report, but suffice to say that a lot of what’s being said about it is untrue. However, that’s not my concern here. I just want to discuss the feasibility of using non-lead projectiles in airguns and hold it to that.
So, I did a little test that I want to talk about today. I tested both lead pellets and lead-free pellets in the same gun at the same distances.
For this test, I used the .22-caliber Hatsan 95 combo breakbarrel that we recently found to be reasonably accurate. I shot the rifle at 10 meters and again at 25 yards; and doing that proved quite revealing. The open sights of the rifle were used for this test.
The best of the best
For this test, I wanted to use the best pellets. For the lead-free pellet, I chose the .22-caliber Beeman ECO FTS. For the lead pellet, I actually tested four different pellets, but settled on just one; and strangely enough, it was the same best pellet that was best in the last test I did with the Hatsan 95.
Before you yell, “Bias!” I know I should test other lead-free pellets in this rifle; but there aren’t that many to test. I do have some others, but in .177 caliber. So, I’ll have to test them next.
Start at 10 meters
I began this test at 10 meters and tried two lead pellets that I knew to be good in the Hatsan 95. The first of those was the heavyweight Beeman Kodiak. When I last v\tested the Hatsan with these pellets in Part 3 of the Hatsan test, 10 shots at 10 meters gave a group measuring 1.073 inches, thought 8 of those shots made a much smaller group that measured 0.529 inches between centers. This time, 10 Kodiaks went into a group measuring 0.834 inches. That’s in between the 8- and 10-shot groups made the last time.

Ten Beeman Kodiak pellets made this 0.834-inch group at 10 meters. Shot with a Hatsan 95.
Next, I tried the best pellet from the last test with the Hatsan, which was the JSB Exact Jumbo that weighs 15.9 grains. Ten of those went into a group that measures 0.514 inches between centers. That compares favorably to a 0.648-inch group last time.

Ten 15.9-grain JSB Exact Jumbo domes made this 0.514-inch group at 10 meters. It’s smaller, but in the same range as the last 10-meter group fired by the Hatsan 95, which was 0.648 inches.
The lead-free pellet
Next up was the Beeman ECO Field Target Special pellet, a 9.57-grain domed pellet that has no lead in it. Weighing less than 10 grains, this is extremely light for .22 caliber. So, the question is — Can it be accurate?
At 10 meters, this pellet turned in a 10-shot group that measures 0.704 inches between centers. That’s smaller than the Kodiak group but larger than the JSB group. And it’s a decent 10-meter group for an open-sighted air rifle of the power of the Hatsan 95.

This is a great group of 10 Beeman ECO FTS pellets. But 10 meters doesn’t tell much. We need to shoot farther to know if this pellet is accurate.
The real accuracy question
Here’s the real question. Ten meters tells us very little about the real accuracy of any pellet. Almost anything can be accurate at 10 meters, but not for very much farther. Real accuracy is the ability to hold a group together at twice the distance and more. To see that, we needed to back up. That’s what I did — backed up to 25 yards and shot again.
At this new distance, the lead-free pellet was again shot 10 times. The group it made this time measures 2.237 inches between centers. That’s a huge group — even when using open sights.

This is the group made by the Beeman ECO FTS pellets at 25 yards. Here we see the true nature of this lead-free pellet. It doesn’t stay together by flies apart as the distance increases.
As a control, a group is shot with the JSB Exact Jumbos. We know from the last test of the Hatsan 95 that this pellet grouped ten shots in 1.882 inches. This time, 10 went into a group that measured 1.728 inches between centers. Not only is that very consistent with that last test, it’s also significantly tighter than the group made by the lead-free pellets.

A 10-shot group measuring 1.728 inches was made by the JSB Exact domes at 25 yards.
Where does that leave us?
This test has many more cycles to run, but what it looks like at this point is lead-free pellets are not yet as accurate as lead pellets in the Hatsan 95. The first test done a year ago showed some surprising results, and there are many more tests yet to be conducted.
Here’s my take on the lead-free pellet issue at this juncture. They’re accurate enough for plinking, and in some guns they’re even more accurate than that; but to-date, I’ve not seen a lead-free pellet that could do as well as a good lead pellet. Since they cost about the same as premium lead pellets, my advice for now is to continue to use lead if you can.
I believe the pellet makers are working hard to perfect lead-free pellets, because they seem to be in our future. This is a topic I will watch and continue to test as new pellets become available.
Testing non-lead pellets: Part 1
by B.B. Pelletier
Writing this blog is a humbling experience. Sometimes, when I think I know the answer and it’s obvious, there’s a surprise. Today I wasn’t just surprised — I was bowled over!
I started this test way back in June when I tested the velocity of all the pellets in my Slavia 631. While testing, I felt the powerplant was running a bit off, so I opened the gun and in so doing I lost one or two very important springs. That moved the Slavia from being a testbed to the repair category. I had other plans for that rifle besides testing non-lead pellets, and I’ve since acquired the parts to fix it (I think). Now all I need is the time.
But I did want to get on with this test so I went to my gun closet and guess what I found? Nothing I have with a scope on it is sighted-in. Remember the cobbler’s children walk around barefoot? That’s the same way for me, as I’m always mounting a scope on something new for another test.
But, fortunately, I own a class of accurate air arms that do not need scopes. My 10-meter target rifles do fine with their aperture sights; and for a 25-yard indoor test, they’re all that’s needed.
The most accurate of all the rifles I have tested to date is the FWB 150 I just tested for you, so that was the gun that got the nod. It was sighted-in for 10 meters (11 yards) so it should have been close enough for 25 yards if a large enough target was used. I used the 10-meter pistol target, whose larger bull at 25 yards looks very similar to the 10-meter bull.
NOTE: This is not a continuation of my earlier test of non-lead target pellets. That’s a series I started but have not yet finished.
To verify sight-in, I shot a 10-shot group of RWS Hobby pellets that went into an embarrassingly large group. However, on the tenth shot one of the stock screws fell out, reminding me to do as I say and not as I do.
After tightening all screws I decided to shoot just five shots since this isn’t a test of ultimate accuracy. I reckoned we could see what we needed from five shots, and I could go through more different pellets that way.
After tightening the stock screws, I shot another five-shot group of Hobbys. While this group was much smaller, it pointed out that I needed to tighten up my shooting technique. I think you will understand why I say that when you examine the group.

Two tight groups of Hobbys (one with three pellets and the other with two) at 25 yards. What can I say? I believe this is due to canting, for as you can plainly see, the pellets tried to group very tight, otherwise.
I figured I was canting the rifle to produce those two groups. With all other pellets, I used downrange cues to slant the rifle the same with every shot.
Surprise, surprise!
The first non-lead pellet I tested was the RWS HyperMAX. I hoped all would hit the target paper at 25 yards, but instead they produced a group that was not much larger than that of the Hobbys. This was not what I had expected. I’ve never seen HyperMAX pellets do so well before, and I must attribute their accuracy to the FWB 150 barrel. I also have to revise my thinking about non-lead pellets, because this is very acceptable performance!

What a surprise! Five RWS HyperMAX pellets did very well at 25 yards from the FWB 150.
Following the HyperMAX, I shot five Skenco Type 2 Hyper-Velocity Field pellets that Pyramyd Air no longer carries. Only four of them connected with the target downrange and the group measured about 12 inches, but that’s just a guess from the new mark I have in the drywall behind the target trap. This was the level of performance I had expected from all non-lead pellets, but in fairness to Skenco, these pellets fit the breech of the rifle very loosely and one even fell back out after loading. I wouldn’t expect accuracy from a lead pellet with a fit like that.
I’m not showing a target for this pellet because it only has four holes, and they’re so far apart that it would be meaningless. The 12-inch spread is no exaggeration.
Next, I loaded the golden Gamo Raptor PBA pellets that have never done well in any of my tests. These are the pellets Gamo touts for killing wild pigs on their TV ads. I’ve read the reports of others who have had good success with them, but I never have. Until now.

Five golden Gamo Raptor PBA pellets made this tight group at 25 yards.
That target was a real shocker for me because I’ve never seen Raptor pellets do well, and I’ve tested them a lot over the years. But the results are very hard to refute, and why would I want to? This is a test on non-lead pellets, after all. Raptors can shoot very well in the right airgun.
That result gave me a lot of confidence that the final pellet, also from Gamo, would group well too. This was the Gamo Platinum PBA pellet that resembles the golden PBA pellet but is actually even lighter.

Five Gamo Platinum PBA pellets made the best group of the test.
I have much less experience with the Platinum PBA pellet, though after seeing these results I will try to include them in some future testing of other airguns. They really are an accurate pellet in my FWB 150.
Results
I wouldn’t put too much faith in the individual group sizes in this test, because they’re only five-shot groups. But the relationships of how accurate they can be should stand out clearly. It was just a chance accident that caused me to test with a target rifle, though I’m sure there are some readers who feel justified by these results. Clearly, lead-free pellets can be accurate in the right situations, and I have to revise my opinions of them.
I will continue to test them in other airguns, plus I’ll look for other lead-free pellets to test in the FWB 150. That’s why this is a Part 1 report. I’m sure there’s more to follow.
It’s also nice to have a reliable testbed rifle that I know I can leave alone for just such a purpose. I thought the 150 was just another pretty face, but now I know she can cook, as well! Life just keeps on getting better all the time.












