Posts Tagged ‘RWS Superdome pellets’
Gamo Whisper Fusion IGT breakbarrel air rifle: Part 3
by Tom Gaylord, a.k.a. B.B. Pelletier
Gamo Whisper Fusion IGT air rifle.
This is the first accuracy report for the .177-caliber Gamo Whisper Fusion IGT air rifle. I shot this test using the open sights at 10 meters from a rest. I did that because I usually don’t have much luck with powerful gas-spring air rifles. They tend to spray their pellets all over the place. And getting a scope mounted and stable can also be a problem, so I wanted a track record for the rifle before I got to any of that.
Smooth Action Trigger
I usually wait until the accuracy test to report on how well the trigger, which in this instance is the Smooth Action Trigger (SAT), performs. The pull weight, measured in part 2, releases at 3 lbs., 12 oz. It’s a 2-stage trigger with a second stage that needs some explanation. Instead of pausing at stage 2 and then breaking cleanly, the trigger on the test rifle — and I must assume on all SAT — pulls through stage 2. You can feel the trigger move, yet there’s no creep. The pull is — well — smooth! And it’s predictable. It’s a different sort of feel from other triggers but not different in a bad way. I don’t think anyone will need to buy an aftermarket trigger when they have a rifle with the SAT installed. Well done, Gamo!
I also thank Gamo for making the safety manual. It does not come on when the rifle is cocked. That makes the shooting progress that much faster and with less for the shooter to do. It’s a small thing, but one that I noticed and must comment on it.
Feel of the rifle
This is a very light air rifle, yet the stock is shaped so your off hand goes to a spot immediately in front of the triggerguard. The rifle is so light that this still gives it a neutral balance, but it hangs right in the hands and feels good on the shoulder. The more-vertical pistol grip has something to do with the good feel, as well.
I did find the stock stinging my cheek with each shot, however. It served as a reminder to hold the rifle even lighter than I was, which is a good thing. Once I did that, there was no more stinging.
Sighting-in
I sighted-in the rifle with JSB Exact RS pellets and discovered that the front sight was too high for a 6 o’clock hold on the 10-meter pistol bullseye target I was using. So, I did something I’ve never before tried. I’ll illustrate the sight picture I used.
The front sight bead was darker than the well-lit bullseye, so I was able to place it at the top of the bull like this.
As you can see, I placed the front bead at the top inside of the bullseye. The bull was so well lit that the bead showed up as black on gray. Maybe this isn’t the best open sight picture, but it seemed to work well enough for this test.
JSB Exact RS
The first pellet I tried was the JSB Exact RS dome. We know it’s often a good pellet — especially in lower-powered air rifles, which the Fusion IGT certainly is not. In this gun, the RS develops 14.32 foot-pounds, which puts it into the medium power group. If you’re a hunter, that’s where you want to be, so long as the rifle is also accurate.
The RS pellet put 10 shots into a nice round group that measured 0.591 inches between centers. While that isn’t a spectacular 10-meter group, it’s good when you consider the novel sight picture I was using. I’ll keep the RS in mind when I back up to 25 yards and mount a scope.
At 10 meters, 10 JSB Exact RS pellets went into this round group that measures 0.591 inches.
RWS Superdome
The next pellet I tried was the RWS Superdome. This pellet generates 15.43 foot-pounds of muzzle energy. Ten shots made a group measuring 1.332 inches. But it’s the shape of the group that’s really interesting! Five of the pellets landed in a very vertical group, while the other 5 made a beautiful small round group of their own. This target demonstrates why 10-shot groups are better than 5-shot groups because many shooters would just accept those 5 close shots and be done with it. I don’t think the Superdomes are right for this rifle based on all 10 shots.
At 10 meters, 10 RWS Superdomes made this large 1.332-inch group. Five pellets landed in a tiny 0.362-inch group on the left that’s deceiving. This pellet is out of the running for this rifle.
H&N Baracuda Match
Many shooters think that heavy pellets are bad for spring guns. They’re supposed to damage the coiled steel mainspring. I wonder what they do to a gas spring like this IGT? That’s my way of saying I don’t think pellet weight is that much of a problem in a springer. Baracuda Match pellets average 824 f.p.s., for 16.06 foot-pounds of muzzle energy. Impressive power. If they’re also accurate, this will be a good pellet for the rifle.
And, accurate they are! Ten H&N Baracuda Match pellets went into 0.625 inches at 10 meters. That’s a pretty impressive group, considering the strange sight picture I’m using. It’s only slightly larger than the JSB Exact RS group, and I think these pellets have earned a spot in the 25-yard test, as well. I have no idea of why they’re spread out horizontally. When I checked the stock screws, all were tight.
Ten H&N Baracuda Match pellets made this 0.625-inch group at 10 meters. This one looks promising.
Gamo Raptor PBA
The last pellet I tested was the Gamo Raptor PBA that Gamo uses to get the velocity out of this powerplant. Raptors go an average 1,232 f.p.s. and produce 18.2 foot-pounds of muzzle energy. That’s the best performance I saw from this rifle…alas, they aren’t accurate. Ten made a groups measuring 1.118 inches at 10 meters.
PBA pellets also cracked like .22 long rifle rounds because they broke the sound barrier. The noise, alone, would keep me from shooting them.
Ten Gamo Raptor PBA pellets made this 1.118-inch group at 10 meters. That’s not very good in light of the two pellets that did well.
Evaluation so far
This rifle has plenty of good in its favor. The hold is good, the cocking is light for the power and the trigger is very nice. I’ll withhold my final opinion until I see how it does at 25 yards; but if this was any indication, this could be a best buy.
Walther LGV Olympia field test: Part 3
by Tom Gaylord, a.k.a. B.B. Pelletier
Walther LGV Olympia was a top-quality 10-meter target rifle from the 1970s.
It’s play time again, today, for this is the day we shoot the Walther LGV Olympia target rifle at 25 yards in preparation for shooting it at 50 yards. This report is a look at the vintage Walther LGV platform as a sporter, rather than the 10-meter target rifle that it is. With Walther bringing out the new LGV models, I thought it would be nice to see how the original LGV did in the same test.
I have no idea which pellet to choose for shooting at 25 yards — to say nothing of shooting twice as far. So, today’s test was nothing beyond my best guess of what might work well. Because I’ll be shooting at a fairly long range with this relatively low-powered spring rifle, I knew the pellets had to be domes. Wadcutters start to fall off in accuracy after 25 yards, and pointed ones aren’t that accurate to begin with. But good domes can be as accurate as good wadcutters, and they hold their accuracy a heck of a lot longer.
I’m shooting 10-shot groups off a rest at 25 yards, using the target sights that belong on the rifle. Ten shots should show which pellet or pellets are the best. I’ll also try each pellet seated flush and seated deep, so there will be 2 groups shot with each pellet.
JSB Exact Express
The JSB Exact Express pellet is a fairly lightweight domed lead pellet that’s new to me. I tried it in the velocity test for the first time and learned that flush-seated pellets leave the muzzle faster than deep-seated pellets. That was the reverse of what 2 other pellets did in that test.
The first 10 shots were with flush-seated pellets. They made a group that measures 0.657 inches between centers; but within that group, there are 8 shots in a 0.257-inch group. What can we say about that? There were no called fliers, and I feel the 2 shots that strayed from the main group did so on their own, without the rifle contributing. I’m looking at the entire group size and ignoring the smaller group-within-a-group. However, this pellet does merit another chance at 50 yards.
Ten JSB Exact Express pellets seated flush went into 0.657 inches, but 8 of them made a 0.257-inch group. Maybe I should try this pellet at 50 yards.
Next, I shot another 10 JSB Exact Express pellets, only these were seated deep with the Air Venturi Pellet Pen and Seater. This time, the group measured 0.778 inches, and you can clearly see the dispersion of the shots. Deep-seating does not suit this pellet.
You don’t have to use calipers to see that this group of 10 JSB Exact Express pellets that were seated deep are scattered all over the place. Group size is 0.778 inches.
RWS Superdome
The next pellet I tried was the RWS Superdome, which so many shooters love. I had no idea how Superdomes would do in the LGV Olympia, and this test would be the way to find out. First, I shot them seated flush. Ten pellets made a group that measures 0.695 inches between centers. The group was fairly round, which I took to be a good thing, because it means the pellets are fairly evenly distributed.
Ten flush-seated RWS Superdomes went into 0.695 inches at 25 yards.
Next, I shot 10 Superdomes seated deep in the rifling. This time, the group wasn’t as pretty, but it did measure only 0.649 inches, which is slightly better than the flush-seated group. It’s a toss-up between the different seating methods, though deep-seating does seem a trifle better. Perhaps the difference would be greater at 50 yards.
Superdomes seated deep made the better group by a small margin. Ten went into 0.649 inches.
JSB Exact Heavy
The final pellet I tested in the LGV Olympia was the JSB Exact Heavy that I included in the velocity test. We wouldn’t normally select a 10.34-grain pellet for a rifle of the LGV’s limited power; but when you shoot out to long distances, the weight of the pellet is more important than its starting velocity.
The first group was shot with the pellets seated flush. It measures 0.354 inches, making it the best group thus far. This group is also very round, which is another point in its favor. I think I’ve found the best pellet to shoot in this rifle at 50 yards!
Ten JSB Exact Heavy pellets seated flush made this remarkable 0.354-inch group at 25 yards.
I now wondered if could this get any better. The next 10 pellets were shot deep-seated and, alas, the answer was…no. I’d gone as far as I was going in this test. Ten deep-seated Express pellets made a 0.79-inch group.
When seated deep, the Heavy pellets opened up to a 0.79-inch group at 25 yards. There’s one pellet hole above the main group that may be hard to see, but it’s there.
So, here at the end of the test we have a very clear example of one seating method triumphing over the other. The Express pellets wants to be seated flush in this rifle.
We also have a clear example of one pellet standing apart from the others. The flush-seated Express pellet made a group that was significantly smaller than all the other pellets I tried. That doesn’t mean it’s the best pellet in the LGV — just the best of these 3 that I tested. When I go to the 50-yard range, I need a day with zero wind — and I’ll try the JSB Exact Express first.
Considerable drop
You may have noticed that the groups were all below the bullseye. That was with the rear sight cranked up pretty high. There’s still some room for more height; but at 50 yards, I know the gun will be printing its groups low. I’ll have to compensate for that.
Gamo Whisper Fusion IGT breakbarrel air rifle: Part 2
by Tom Gaylord, a.k.a. B.B. Pelletier
Gamo Whisper Fusion IGT air rifle.
Today, we’ll look at the velocity and power of the Gamo Whisper Fusion IGT air rifle. This breakbarrel rifle has a gas spring that seems to intrigue many new airgunners, so let’s talk about that first. A gas spring is a unit that uses compressed gas rather than a coiled steel mainspring to power the piston. Besides that, it’s identical to a conventional spring-piston powerplant.
What’s in a name?
There are many names for the gas spring. Some call it a gas strut, others call it a gas ram, but all these names refer to the same thing. We’re talking about a mechanical device that contains compressed air or other gas (Crosman uses nitrogen — hence Nitro Piston) to push the piston. When the gun is cocked, the piston unit is pushed backwards — making the compressed gas reservoir shorter. When the gas chamber inside the piston becomes smaller, it causes the internal pressure to rise. When the gun fires, this compressed gas pushes the piston forward, and the piston seal compresses the air in front of it.
None of the gas inside the gas spring mechanism escapes. It remains inside, where it can be used again and again. Gas springs are found on modern cars — holding open the heavy back decks and front hoods that used to be held by coiled steel springs. The gas springs on a car usually last for more than a decade, and it isn’t uncommon to find them still working in cars that are 20 years old. Throughout all that time, they’ve been kept fully compressed 99.9999 percent of the time, yet they can still do the job for which they were designed. This is why we say that an airgun with a gas spring can be left cocked for a long time without loss of power.
The advantages of a gas spring in a spring-piston airgun are:
* Can remain compressed a long time without power loss
* Are lighter than powerplants with coiled steel springs
* Vibrate less
* Move faster than coiled steel springs
* Are less sensitive to temperature changes
The disadvantages of a gas spring are:
* Impart a sharp crack to the discharge
* Require nearly full effort even when the piston is all the way forward, making for harder cocking
* Have a sharp recoil that can hurt if the gun is held too tight
Velocity
Now, it’s time to look at the velocity and power of the Whisper Fusion IGT. The first pellet I tried was the JSB Exact RS, a 7.33-grain pellet that’s pretty light for this powerplant. RS pellets averaged 938 f.p.s. after I allowed the rifle a few shots to settle down. The low was 919 f.p.s. and the high was 949 f.p.s., so the spread was 30 f.p.s. I think that will tighten with time and more shots on the powerplant.
At the average velocity, this pellet generates 14.32 foot-pounds at the muzzle. I’d expected more power; but once the gun had settled down, it was fairly consistent at that speed. The RS pellets fit the breech somewhat loosely.
RWS Superdomes
Next, I tried the 8.3-grain RWS Superdome pellet. They averaged 915 f.p.s., with a spread from 909 to 921 f.p.s. The gun is already starting to stabilize.
At the average velocity, this pellet generates 15.43 foot-pounds of energy at the muzzle. Superdomes fit the breech snug but not tight.
H&N Baracuda Match
Then, I tried some H&N Baracuda Match pellets. At 10.65 grains, these were the heaviest pellets I tried. The Whisper Fusion IGT belted them out the spout at an average 824 f.p.s., for a muzzle energy of 16.06 foot-pounds. The spread went from a low of 822 f.p.s. to a high of 828 f.p.s., so the gun was extremely stable with these pellets.
Baracuda Match pellets fit the breech tighter than all other pellets. That tells me the rifle needs something to push against, and deep-seating would not be recommended.
Gamo PBA
The final pellet I tried was the lead-free Gamo Raptor PBA, a 5.4-grain domed pellet. They averaged 1,232 f.p.s. in the rifle, with a range from 1,217 f.p.s. to 1,245 f.p.s. Even with this lightweight pellet, the rifle is still very stable. The total spread is just 28 f.p.s.
At the average velocity, the Raptor PBA pellets produced 18.2 foot-pounds, so the energy is definitely up. But these pellets fit the breech the worst of all those I tested. Some were so loose that they fell out when the barrel was closed, while others fit extremely tight. Because of this, I doubt they’ll give good accuracy.
Cocking effort
The Whisper Fusion IGT cocks differently than any gas spring rifle I have experienced. The initial part of the cocking stroke rises to about 30 lbs. and stays there until the final few inches of the stroke. It increases to 43 lbs. of effort for the last little bit. Most gas springs are consistent throughout their entire cocking stroke, but not the test rifle. It requires two hands for me to cock it more than a handful of times.
Trigger
The trigger-pull seems light and smooth. Of course, we will find out more about that in the accuracy test, but for now it does seem very nice. This is the new Smooth Action Trigger, and it seems to be lightyears better than Gamo sporting triggers of the recent past. I think it’ll be a winner. Stage 1 is short and takes 4 oz., while stage 2 breaks at 3 lbs., 12 oz.
Opinions so far
The rifle has less velocity than the 1,300 f.p.s. advertised, but in this case that’s a good thing. It has exactly what a hunter wants in terms of power. It seems to want to be stable and should not require a lengthy break-in, which is a good thing. Accuracy testing comes next, and we’ll see what it can do in the package Gamo provided. I’ll shoot it with open sights…first at 10 meters, then scoped at 25 yards.
Walther 1250 Dominator PCP air rifle: Part 4
by Tom Gaylord, a.k.a. B.B. Pelletier
Walther 1250 Dominator.
Today, we’ll test the Walther 1250 Dominator at 50 yards. I had to go out to the rifle range for this test, and we’ve been having some winds lately, so it took some time before I got a calm day. But this day was perfectly calm — I couldn’t have asked for a better day to shoot an air rifle at long range.
As you recall, the Dominator takes a 300-bar fill, which is 4,350 psi. I had to delay the test to get my carbon fiber tank refilled, and even then I didn’t have enough air for a full fill. When you fill a tank, it gets warm; and when it cools back down, you lose several hundred psi. I was able to fill to about 4,100 psi this time, but that single fill was enough air to last for the entire test, which was about 50 shots. And the needle in the pressure gauge is still in the green, which means there are more full-power shots remaining in the rifle.
I normally shoot from one of two mechanical rifle rests when I’m at this range, but for this test I decided to use my long sandbag, instead. The rifle lays in the crease on top of the bag and doesn’t move. There’s also more flexibility to reposition the rifle when required. Since this is a repeater that has to be reloaded, this flexibility was a good.
Since the circular clip holds 8 pellets, I decided to shoot 8-shot groups. It’s too much trouble to load just two pellets by themselves. So, all the groups seen today are 8-shots.
RWS Superdomes
The first pellet was the venerable RWS Superdome. They landed close enough to the bull that I didn’t bother to adjust the scope. Eight pellets made a group that measures 2.017 inches between centers. The pellets spread out horizontally, but there was no wind whatsoever. I don’t think this pellet is suited to the rifle.
Ten RWS Superdomes went into 2.017 inches at 50 yards.
Following this, I adjusted the scope up and to the left just a little to compensate for where the Superdomes had landed. Then, I shot a group of JSB Exact Heavy pellets.
JSB Exact Heavy
I expected the JSB Exact Heavy dome pellet to give good groups, and it did — sort of. Seven of the 8 pellets landed in a group that measures 0.753 inches between centers. But 1 shot landed apart from the group, opening it up to 1.933 inches. This shot was somewhere in the middle of the string of 8. It wasn’t the first or last shot, and there was no called flier. It’s just somewhere in the string.
When something like this happens, I’m tempted to believe that it was caused by a defective pellet or by something just as obviously wrong. I think the JSB Exact Heavy is a good pellet for this rifle.
Seven JSB Exact Heavies went into 0.753 inches, but an unexplained lone shot strayed higher to increase the group size to 1.933 inches.
Beeman Devastator
I probably shouldn’t have tried Beeman Devastators because they’re essentially wadcutters in profile, and wadcutters don’t do well at long distances. But I did try them, and they strung vertically into a group that measures 3.067 inches. Obviously, they’re a non-starter for this rifle at 50 yards.
Eight shots in 3.067 inches. Beeman Devastators were not too good. Sorry for the lines, but the Devastators overlapped another group and I had to mark them both to keep them separated.
JSB Exact RS
Next, I shot a group of JSB Exact RS domes. As light as they are, I wouldn’t normally recommend them for a precharged rifle of the Dominator’s power but had them along, so why not? Eight went into 0.945 inches, so I’m glad I tried them. This was the smallest group of the test. I do want to emphasize that the day was calm, because these light pellets do get blown around a lot.
Eight shots in 0.945 inches. JSB Exact RS pellets were the best of the test.
Crosman Premier 10.5-grain
Next up were the heavy Crosman Premier 10.5-grain pellets. I expected them to do well in this rifle, and they didn’t disappoint. Eight went into a group measuring 1.19 inches between centers. While that number sounds a little large, look at the group it represents. It’s a little vertical, but it’s not a bad group.
Eight shots in 1.19 inches. Crosman Premier heavies were in the running.
Crosman Premier 7.9-grain
The last group I shot was with the 7.9-grain Crosman Premier lite. Eight of them made a group measuring 1.371 inches. That’s a little large when there are other pellets that are better, but it’s not a bad showing for 8 shots at 50 yards
Eight shots went into 1.371 inches. Given the other good pellets, Premier lites are probably not the pellet of choice, but this isn’t bad.
The bottom line
I was glad to finally have the chance to test the Walther 1250 Dominator. It was a good rifle, overall, but I took exception to removing the air tank to fill it, the high fill pressure and the discharge noise.
However, out at the range, the rifle was much quieter — far quieter than a rimfire. Also, the trigger that I complained about when shooting indoors was actually no problem outside. I don’t know what the difference was, except that it was a different day and I saw things differently. I must say, there are a lot of very powerful shots in the tank once you get it up to pressure.
I did get used to fiddling with the bolt handle, and the rifle fed without a problem during this test. Installing the rotary clip is easier than on most other PCP rifles.
I would have to say that the 1250 Dominator is a fine precharged air rifle, but it runs into a lot of stiff competition. Buyers will get it because they like the overall styling, the all-weather materials it is made from and the high shot count.
Walther LGV Olympia field test: Part 2
by Tom Gaylord, a.k.a. B.B. Pelletier
Walther LGV Olympia was a top-quality 10 meter target rifle from the 1970s.
Don’t get confused. The title of this blog is the Walther LGV Olympia field test, but the first part was titled, We interrupt our regular program….I used that title so I wouldn’t give away the topic that first day. This report is, indeed, about the Walther LGV Olympia of history, but this is a new take on it. I already reported on it two and a half years ago, but that report was about the rifle as a vintage 10-meter target rifle, which at that time was all the LGV had ever been. Only in 2012, when Walther brought out their new line of sporting rifles under the LGV model name, was the LGV anything except a breakbarrel target rifle.
We’ve now looked at the .177-caliber Walther LGV Master Ultra rifle and also at the .22-caliber LGV Challenger (which I now own), so I thought it might be nice to see how the original LGV stacks up to these new rifles. This test will look at the vintage LGV Olympia at 25 yards and at 50 yards. At both distances, I’ll use the rifle’s target sights. I mentioned last time that when I tested the FWB 300S at 50 yards, it didn’t seem to matter that much whether target sights or a scope was used, so I see no need to switch the sights on this rifle.
One thing I have learned in the two and a half years since testing the LGV target rifle is how deep-seating the pellet often has a dramatic affect on accuracy. We have seen that with other airguns, but this will be the first time I think I’ve tested it on a vintage target rifle. This should be an interesting test. And, because the LGV is a breakbarrel, it plays right into the test plan, because breakbarrels are the easiest type of guns in which to seat the pellets deep.
Naturally, I’ll use the Air Venturi Pellet Pen and PellSet seater to seat the pellets. It’s so easy; because once you set the optimum seating depth, it never changes until you change it. If you don’t have a tool, you can seat pellets with a ballpoint pen…but the seating depth is not adjustable.
Today, we’re just going to see how well the rifle performs with some sample pellets that might get chosen for the 25-yard test. I’ll test the velocity of all pellets both seated flush with the end of the barrel and also seated deep. That will be a good comparison.
JSB Exact Heavy
You must wonder if I’ve lost my mind, testing the 10.34-grain JSB Exact Heavy domed pellet in a rifle this weak. No, that’s one of the types of pellets I expect might do well at 50 yards. It certainly has the capability to buck the wind, so I thought it might be a good one to test. I have almost no experience shooting airguns of this low power level out to 50 yards, so this is just a hunch.
JSB Exact Heavys averaged 500 f.p.s when seated flush with the breech. The low was 499 f.p.s., and the high was 501 f.p.s., so there was a total variation of just 2 f.p.s. That’s remarkable for a spring-piston air rifle — I don’t care what type it is! This pellet generates 5.74 foot-pounds of muzzle energy.
When seated deep, the same pellet averaged 511 f.p.s., with a low of 509 f.p.s. and a high of 512 f.p.s. The spread opened up to 3 f.p.s., which is still astonishing. Deep-seated pellets averaged 11 f.p.s. faster than flush-seated pellets. The average muzzle energy was 6.0 foot-pounds.
RWS Superdome
The second pellet I tested was the ever-popular RWS Superdome. This is another pellet that I believe might do well at long range when fired from this air rifle. When seated flush, they averaged 552 f.p.s., with a 17 f.p.s. velocity spread from 543 f.p.s. to 560 f.p.s. The average muzzle energy this pellet generated when seated flush was 5.62 foot-pounds.
When seated deep, the average velocity increased by 10 f.p.s. to 562 f.p.s. The spread ranged from 557 to 565 f.p.s., so it tightened up to just 8 f.p.s. The average muzzle energy was 5.82 foot-pounds.
Beeman Kodiak
Next, I tested the Beeman Kodiak pellet. This is another heavy pellet that I plan to try at 25 yards; and if it does well there, at 50 yards, too. At 10.65 grains, this is the heaviest pellet in today’s test. When they were seated flush, Kodiaks averaged 483 f.p.s. in the LGV Olympia. The spread went from a low of 478 f.p.s. to a high of 487 f.p.s., so 9 f.p.s. in total. That’s still pretty tight. The average energy was 5.52 foot-pounds.
When seated deep, the average velocity for Kodiaks increased to 501 f.p.s. The spread now went from a low of 479 f.p.s. to a high of 515 f.p.s., so a total of 36 f.p.s., which is on the high side. The average muzzle energy was 5.94 foot-pounds.
JSB Exact Express
The JSB Exact Express pellet is one I haven’t tried before. It’s a dome that weighs 7.87 grains. Normally, I would try the JSB Exact RS pellet in a rifle like this; but when I tested it in the past as a 10-meter rifle, I did try the RS pellets and they didn’t seem to do very well at 10 meters. So, I welcomed the opportunity to include this new JSB dome in the test.
Although it’s heavier than the RS, this Express pellet is still the lightest pellet I tried in this test. When seated flush, it averaged 585 f.p.s., with a spread from 569 to a high of 593 f.p.s. The average muzzle energy was 5.98 foot-pounds.
Of course, I expected this pellet to go even faster when seated deep, but it didn’t. In fact the relationship between deep-seating and velocity turned around 180 degrees with this pellet. The average for deep-seated Express pellets was 547 f.p.s., with a range that went from 545 to 553 f.p.s. The average muzzle energy was 5.23 foot-pounds. So, just like we have seen in some tests of deep-seated pellets in the past, here’s another surprise. I wonder what will happen in the accuracy test?
Trigger-pull
The Walther LGV Olympia has an adjustable 2-stage match trigger. The one on my rifle is set very nicely, and stage 2 breaks at 10.5 to 11 oz. I can do very fine work with a good trigger like this.
Impressions thus far
I was surprised by how consistent the rifle is with JSB pellets. The fact that 3 pellets increased when seated deep, while one decreased, is also something curious. It just points out the need to test a gun in as many ways as you can think of, I guess.
Best of all, this test gives me one more opportunity to shoot and handle this rifle. I own many nice airguns, but my work doesn’t often afford the chance to play with them; so, tests like this one are a refreshing change for me. And I know that many of you get enjoyment from reading about a fine vintage airgun. It’s a nice change of pace.
I do hope the newer readers will see how nice these older airguns are and maybe use the links to explore them more thoroughly. If you’re new to the shooting sports, this is where a lot of the fun is found.
Walther 1250 Dominator PCP air rifle: Part 3
by Tom Gaylord, a.k.a. B.B. Pelletier
Walther 1250 Dominator
Let’s look at the Walther 1250 Dominator accuracy at 25 yards. In deference to the 8-shot clip, I’m shooting 8-shot groups rather than 10. The way this rifle loads, with the clip almost disappearing in the receiver, it’s too difficult to keep track of those 2 extra shots.
It’s loud!
I’ll be honest — I stalled testing this gun in the house because of the noise. It’s one of the loudest airguns I’ve ever shot indoors.
Air use
I said last time that I would give you a shot count once I filled the rifle to 4,350 psi (300 bar). Well, that didn’t happen. I filled it as far as my freshly filled carbon fiber tank would go, but that was only to 4,200 psi on the tank’s gauge, which seems pretty accurate. The rifle’s gauge showed a lower fill pressure, but I chalk that up to small pressure gauges never agreeing.
I didn’t get a complete shot count. I did, however, fire about 40 shots in the test and still had air remaining for at least another 15. If you can get the gun completely filled, there have to be at least 55 full-power shots available. Probably more, but at least 55.
Scope
I mounted an AirForce Airguns 4-16X50 scope on the rifle in a BKL 1-piece cantilever mount. The scope was low over the receiver, even though the BKL mount is a high one; but because the circular clip is entirely contained within the receiver, there was no interference.
Shooting
I shot from a sandbag rest at 25 yards off an MTM Case-Gard Predator shooting table. In a moment that will become important to know.
I sighted the rifle in and started shooting with the H&N Baracuda Match pellet. It was accurate enough, but I felt the rifle could do better. Eight shots went into a group measuring 0.597 inches between centers.
This group of 8 H&N Baracuda Match pellets measures 0.597 inches between centers. Not bad for 8 shots at 25 yards.
The Baracuda Match pellets didn’t give me what I wanted, so I switched to 10.34-grain JSB Exact Heavy domes. They started out doing better than the Baracudas and produced a 0.522-inch 8-shot group. But two pellets strayed from the main group. I called the one that went to the left, but not the other one that went high. So, as good as this pellet is, it isn’t the best pellet in this rifle.
Eight JSB Exact Heavys made this 0.522-inch group. The pellet on the left is a called shot, but the one that’s up in the black was not called.
Then, I tried RWS Superdomes — a pellet that many of you favor over just about all others in .177 caliber. And this is where I had an epiphany with this rifle. The first 8-shot group measured 0.461 inches, but it was full of wild shots that went off when I wasn’t on target. That was both the fault of the trigger and the rifle’s light weight. I’ll address it in a moment. But this target told me that this rifle could shoot much better if I really tried.
Eight RWS Superdomes went into 0.461 inches at 25 yards. It looks good, but there are several wild shots in this group. I knew the rifle could do better.
The Walther 1250 Dominator is a very light rifle, and the trigger isn’t that light. As a result, the gun moves more than a little as the trigger is squeezed. This can be overcome by paying extreme attention to detail on each shot, but it’s something I normally don’t need to do when shooting an accurate PCP.
That’s why I mentioned the shooting table and sandbag rest. Normally, such things are an absolute lock for the guns, but this time the rifle is so light that it still moves around too much. You’re only going to solve that with technique.
The next group was shot with as much concentration as if I were using the artillery hold. And the payoff is a 0.404-inch 8-shot group. That represents the best I can do with this rifle and pellet at 25 yards.
Eight RWS Superdomes went into 0.404 inches at 25 yards. Every shot was perfect on this one.
Sticky bolt
The bolt is hard to cock and sticks when pushing it forward to load the pellet. It isn’t much of a hinderance, but you do notice it. I did discover that if the bolt is worked fast and with authority, it does become smooth. So, the rifle likes to be treated like an SMLE.
Opinions thus far
I found things to criticize on the Walther Dominator 1250. No. 1 is the need to fill it to 300 bar. That’s just too much pressure, and it uses all the air I can get. The rifle is very loud, and I’m no longer used to pneumatic air rifles being so loud. The trigger is too heavy and long, and the rifle needs to weigh at least 2.50-3.00 more lbs. to be stable. However, all that pales when we look at the accuracy.
This is an accurate air rifle — make no mistake. Today’s test was at 25 yards, so it’ll be very interesting to see what happens when we move to 50 yards.
Walther 1250 Dominator PCP air rifle: Part 2
by Tom Gaylord, a.k.a. B.B. Pelletier
Walther 1250 Dominator.
Thank you for being so patient with me on this Walther 1250 Dominator report. I had to suspend it while I was back in Maryland; but now that I’m home, I can start up again. Today is velocity/power day, so we’ll learn a lot about this air rifle.
Filling with air
To fill the reservoir, you first remove it from the rifle by unscrewing. Then, it’s screwed onto a brass adapter that’s screwed into a 300-bar DIN hole on a carbon fiber tank or scuba tank valve.
You fill the reservoir up to 300 bar, or 4,351 psi. The only way to get that much pressure is to use either a carbon fiber tank or to connect the reservoir directly to an air compressor or hand pump that goes that high. My carbon fiber tank was holding less than 3,000 psi when I conducted this test, but fortunately the rifle has a broad power band. Even though I can’t fill the reservoir all the way, the gauge on the tank still reads in the green. I’ll get fewer shots, but they will be at the same velocity. It’s just like a car that goes no faster when its gas tank is full or nearly empty.
However, I cannot give you a shot count in this report because I’m not filling the reservoir all the way. That will have to come later.
As an observation, I would use the Air Venturi female DIN adapter with this reservoir, so I could use either a hand pump or carbon fiber tank to fill the reservoir.
Trigger and safety
The two-stage trigger is adjustable for the length of the first stage. You can even adjust it out, and have a single-stage trigger. The adjustment doesn’t alter the force required to release the sear in stage two. On the test rifle, that broke at 2 lbs., 8 oz. with stage one taking 6 of those ounces.
Stage two has a definite feel of the pull through to it. It’s not creepy, in the sense that it stops and starts, but is rather a smooth pull-through that can actually be felt. It’s not bad — just not glass-rod crisp.
The safety is automatic on cocking, but it’s designed to go off easily with a downward swipe of the thumb. After several shots, I found myself not even thinking of it.
Discharge noise
This rifle will have those with sensitive ears running for their hearing protection. There’s no attempt to muffle the discharge, so you hear the full effect of the power. It’s not as loud as a .22 rimfire; but if you shoot indoors, I can imagine shooters using that as a description.
It’s fully as loud as any other pneumatic of its power class when no attempt is made to attenuate the discharge sound. Thirty years ago it would have sounded normal; but in this day of shrouded barrels, it stands out.
Power
This Walther is rated to 28 joules, which is just a bit more than 20.6 foot-pounds. There’s no mistaking the spec, for it’s written on the right side of the receiver. That is a lot of power for a .177 pellet rifle to generate, and of course you’ll need heavy pellets to achieve it. So that was where I started the test — with Beeman Kodiak Match 10.65-grain pellets. To achieve 20.6 foot-pounds (28 joules), this pellet needs to exit the muzzle at about 933 feet per second, according to Pyramyd Air’s energy calculator.
But the average velocity I recorded for this pellet was 968 f.p.s., which works out to 22.16 foot-pounds or 30.05 joules. So, the rifle is more powerful than advertised. The average velocity went from a low of 965 to a high of 972 f.p.s., which is a tight 7 foot-second spread.
RWS Superdome
Next, I tried the popular RWS Superdome pellet. It averaged 1005 f.p.s. from the test rifle, with a spread from 998 to 1013 f.p.s. That’s a 15 foot-second spread, and the energy generated is 18.62 foot-pounds at the muzzle. As you can see, that’s a big drop-off from what the heavier Kodiak Match pellets generated. Precharged pneumatics often generate their best energy with the heaviest pellets they can manage, so this comes as no surprise. However, it will only be after we see the accuracy of these test pellets and perhaps some others that we will select an optimum pellet for the rifle.
H&N Match Pistol
As a final pellet I selected the lightweight H&N Match Pistol pellet. I wanted to test two things here. First, how would the rifle handle lighter pellets; and second, would the magazine handle wadcutters smoothly. It actually did feed these pellets smoother than both of the domes, so that part of the test was a success.
The average velocity was 1018 f.p.s. with a spread from 1016 to 1020 f.p.s. That was the tightest velocity spread of all — just 4 feet per second. The average energy for this 7.56-grain pellet was 17.40 foot-pounds at the muzzle, so another power decrease came with this lighter pellet.
Reliability and pellet feeding
Any time I test a repeater, I always wonder if the gun will feed pellets smoothly and how the magazine…or in this case the clip…will handle the pellets. There are no concerns with the 1250 Dominator, though; because the pellets go into the clip easily, they stay in well and the clip goes into and comes out of the receiver with great ease. The bolt sometimes hangs up on the forward stroke, but that’s due to the newness of the gun — not a pellet feeding problem. I believe it’ll go away as the action is broken in.
The clip is long enough to accept the Beeman Kodiak, which is a long pellet, so I have no problem with it. And it feeds wadcutters well, so pellet shape is not a problem, either.
Observations thus far
The Walther 1250 Dominator is certainly a different PCP. It has a lot of synthetics and a different shape than is thought to be conventional, but it holds very well — hanging muzzle-heavy. The profile may appear different, but it holds like a rifleman’s gun. I can’t wait to see it shoot!
