Posts Tagged ‘Evanix Rainstorm 3D bullpup’

Evanix Rainstorm 3D bullpup: Part 4

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

Part 1
Part 2
Part 3

Evanix Rainstorm 3D Bullpup
Evanix Rainstorm 3D bullpup

It’s been some time since I did Part 3 of the Evanix Rainstorm 3D bullpup rifle. Just to remind you of where we left off, I found the gun difficult to shoot with the UTG 3-9X32 Bug Buster rifle scope because of the medium-height scope rings. I removed that scope and mounted the UTG 3-9X40 True Hunter rifle scope that comes bundled with high 2-piece Weaver rings. They were better, but even they seemed a bit too low because of the bullpup configuation. This is the same scope I used in the test of the Hatsan AT P1 PCP pistol.

Today’s test was done at 50 yards on an outdoor rifle range. The weather was perfect, without a hint of breeze. I didn’t sight-in the scope before going to the range, so I sighted-in at 50 yards. Luckily, the scope wasn’t that far off, and I was on target in 3 shots.

The 25-yard test that was done in Part 3 showed that only 2 pellets were worth trying at 50 yards. I shot just them and nothing else.

I also want to remind you that the rifle likes to be filled to 2,900 psi according to my tank’s gauge. It has more than 10 shots on a fill, but it does go through air pretty quick. So, just for continuity, I refilled after every group.

JSB Exact 15.9-grain domes
I sighted-in with the best pellet from the earlier test, which was the 15.9-grain JSB Exact Jumbo Heavy. Since the third shot landed where I wanted, I continued to shoot and made an 8-shot group for starters. That group measured 0.961 inches between centers. I noted that the bullpup-style stock made the rifle difficult to hold steady on target, so this group was as steady as I was able to hold. I was fighting the trigger, which breaks at 6 lbs., 10 oz. It’s hard to hold on target with a trigger this heavy. Also this rifle is tall and narrow, so it wobbles from side to side when you hold it. I didn’t see a way around that at first, but then I figured it out.

Evanix Rainstorm 3D bullpup sight-in target
Eight JSB Exact 15.9-grain domes landed in 0.961 inches at 50 yards. The shots are a little low, so I adjusted the reticle up a couple clicks after shooting this group.

Next, I shot a 10-shot group with the same JSB Exact Jumbo Heavy pellets. The rifle’s circular magazine holds 11 pellets, but I loaded it with only 10 to keep things consistent with most of my other 50-yard tests.

The scope had been adjusted higher for this group, so the shots landed higher on the bull. Ten pellets made a 1.501-inch group. I must comment that during this group I saw the crosshairs move around on the bull a lot more than I would like. That heavy trigger caused it. In the group that resulted, I see 2 separate points of impact that are one above the other. That isn’t what I would expect a sideways wobble to produce, but something was wrong with my hold. I had to solve that first.

Evanix Rainstorm 3D bullpup first JSB Exact Jumbo target
This is the first full 10-shot target that was fired at 50 yards with the Rainstorm bullpup. It measures 1.501 inches. Eight pellets went into 0.941 inches.

Toward the end of the first full group, I found a way to stabilize the rifle pretty well. I was shooting off a sandbag rest that helped with stability, and I found that if I gripped the frame tight (where the forearm would be on a conventional rifle) the wobble stopped. That made me more confident that the group I would be getting was what the rifle could actually do.

Following that group, I shot a second group of 10 JSB Exact Jumbo Heavies that measured 1.406 inches between centers. This one is fairly well centered on the bull and doesn’t have the 2 separate points of impact like the first group. I think the improved hold was responsible, although I can’t see why a sideways wobble would do what I’d seen before. Maybe the wobble was greater than I thought?

Evanix Rainstorm 3D bullpup second JSB Exact Jumbo target
The second full group was a little smaller than the first — at 1.406 inches between centers. I felt the rifle was held well for this group. This is as good as this pellet can do (in general) in this rifle with me on the trigger.

Beeman Kodiaks
Next, it was time to try 10 Beeman Kodiak, which was the second-best pellet at 25 yards. It didn’t do as well. The first few shots scattered all over the place, landing far to the left of the aim point and also a bit lower. When all 10 shots were finished, I had a 2.32-inch group that looks more like a shotgun pattern than a group from a rifle. However, I must note that 9 of those shots did land in a 1.331-inch group. But the one lower shot that opened the group wasn’t the last one. It was the third shot. Based on that, I would scratch Kodiaks for this rifle and stick with the JSB Exact Jumbo Heavies.

Evanix Rainstorm 3D bullpup Beeman Kodiak target
Beeman Kodiaks went all over the target. Ten made this 2.32-inch group, although 9 of them passed through 1.331 inches.

Overall impressions
I’ve come to the end of my test of this air rifle. It’s been an interesting journey, and I’ve learned some things from it. First, when you scope a bullpup, get the highest scope rings you can. Ring risers might be a good idea. Second, the idea that bullpup actions have poor triggers is apparently true. And finally, when the cross-section of your rifle is as flat as a flounder, it will be harder to hold steady.

The Evanix Rainstorm 3D bullpup rifle is definitely a different beast! It holds different and shoots different than a conventional PCP. If you’re looking for the bullpup styling, then either this or the Evanix Max bullpup is the airgun you want. It will produce acceptable accuracy out to 50 yards when you do your part. Just remember that the trigger is stiff and creepy, and the rifle needs a firm hold.

Evanix Rainstorm 3D bullpup: Part 3

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

Part 1
Part 2

Evanix Rainstorm 3D Bullpup
Evanix Rainstorm 3D bullpup

Today, we’ll look at the accuracy of the Evanix Rainstorm 3D bullpup PCP air rifle. Since this is such a powerful and loud air rifle, I decided not to shoot it in my house. So, today is a 25-yard accuracy test that was conducted at my rifle range. I doesn’t matter, though, because 25 yards is the same indoors or out.

You may recall that I adjusted the trigger last time. I said I got it as light as it would safely go because the adjustment acts on the sear contact area, so this day on the range was the first real chance I had to test it under real shooting circumstances. Although it’s a little heavy at 6 lbs., 10 oz., it’s now reasonably crisp. There is no significant creep in the trigger, which for a bullpup is pretty amazing. It’s about the same as some military rifle triggers. I can shoot this rifle with no excuses.

Someone thought that the rifle would be easy to cock because the sidelever is on the right side of the receiver. Well, touch your right shoulder with your right index finger to get an idea of how easy it is. I found it best to dismount the rifle from my shoulder to cock it each time.

Another assumption I made while in my office was that the Bug Buster scope that comes with medium-high rings would work well on this rifle. Size-wise it does look good; but when I went to shoot off the bench, I discovered that the high rings will be best, after all. That’s no reflection on the Bug Buster scope — the rings just need to be higher. As it is now, I have to tilt my head severely to see the image.

JSB Exact Jumbo Heavys
While I usually begin any shooting session at 10 feet to check the scope’s alignment, this time I settled down at 25 yards and just started shooting. The pellets for the first group landed 3 inches low and 1.5 inches to the left, which is not bad for just mounting the scope and shooting without sighting in. The first group was 10 JSB Exact Jumbo Heavy pellets — an 18.1-grain dome that often works well in airguns in this 40 foot-pound power range.

The first group measures 0.574 inches for 10 shot at 25 yards. I thought that was an auspicious start for this rifle.

Evanix Rainstorm 3D bullpup 25 yards JSB Exact Jumbo 18-grain group
Ten shots into 0.574 inches at 25 yards is a good start.

The rifle doesn’t move when it fires. I think that’s due to the weight, though I had a good hold on it, since I was in a somewhat odd position and had a tight grasp, just to see through the scope.

JSB Exact Jumbo Monsters
After the first group, I adjusted the scope by guesswork and brought the next group up to just under the bull I was aiming at. This was with a clip of the 25.4-grain JSB Exact Jumbo Monster pellets. This is another dome that’s even heavier than the tried-and-true Beeman Kodiaks. They acted like they wanted to group, but a couple strayed outside the main concentration, making me think they’re not the best for this rifle. Too bad; because at that weight, they really pack the punch.

Two pellets got stuck in the clip and had to be unloaded and reloaded to work right. That would be reason enough not to pick this pellet.

Evanix Rainstorm 3D bullpup 25 yards JSB Exact Monster 25-grain group
Ten JSB Jumbo Monster pellets went into 0.942 inches at 25 yards. Two pellets got stuck in the clip, so this pellet is not recommended for the 3D bullpup.

Eun Jin
Next, I tried 10 of the 28.4-grain Eun Jin domes. They just barely fit in the clip lengthwise and 2 got stuck in the magazine; but if they were accurate enough, I could overlook any shortcomings just to get the extra power. Ten landed in a group that measures 0.666 inches. That’s pretty darned good when the extra power is needed.

Evanix Rainstorm 3D bullpup 25 yards Eun Jin group
Ten Eun Jin pellets went into 0.666 inches at 25 yards. Two pellets got stuck in the clip, so this pellet is only recommended for this rifle when you need the extra power.

Beeman Kodiak
It was time to try the Beeman Kodiaks that I thought might be one of the best pellets in this rifle. And I was right! Ten of them went into a group measuring 0.491 inches — the smallest group of the test! Don’t be misled by the appearance of this group. It does appear larger than the first group, but careful measuring shows that it’s smaller.

Evanix Rainstorm 3D bullpup 25 yards Beeman Kodiak group
Ten Beeman Kodiaks went into 0.491 inches at 25 yards. No pellets were stuck in the clip, so this is the pellet of choice for the Evanix 3D bullpup.

RWS Superdome
The last pellet I tried was the 14.5-grain RWS Superdome. It’s a very popular pellet — especially among spring-gun shooters, so I thought I’d include it in this test. Boy, what a dramatic finish it was! Ten Superdomes went into a group that measures 2.914 inches between centers! If I hadn’t shot it myself I wouldn’t have believed it after seeing all those other groups! Obviously, I’m not going to recommend Superdomes for the Rainstorm 3D bullpup!

Evanix Rainstorm 3D bullpup 25 yards RWS Superdome group
Ten RWS Superdomes went into 2.914 inches at 25 yards. This is a non-starter for this rifle.

Cool carrying case
A while back, AirForce Airguns presented me with a TalonP pistol that I tested for you. They were kind enough to put it in one of their soft carry bags, and I found that it fits this bullpup perfectly! After posting this, Edith told me that the bag is no longer being made. If you are buying the 3D, you might want to try one of the tactical bags made by Leapers. They’re about the same size and are already linked to the gun on Pyramyd Air’s site.

Evanix Rainstorm 3D bullpup AirForce case closed
The AirForce tactical bag is perfect for the Rainstorm 3D bullpup.

Evanix Rainstorm 3D bullpup AirForce case open
Besides the rifle, there are many zippered pockets for the rest of your shooting stuff.

General impression thus far
I learned in this session that, while the Bug Buster is a wonderful scope, the medium-high rings it comes with are too low for this bullpup. Since I’ll be changing the rings anyway, I’ll use this opportunity to mount a different scope on the Rainstorm 3D bullpup.

I also learned that JSB Exact Jumbo Heavys (the 18.1-grain dome) and Beeman Kodiaks are the 2 best pellets in the test rifle. Next time, I’ll shoot these 2, plus perhaps one additional pellet I haven’t tried yet. That will be the final test at 50 yards.

The bullpup configuration was never meant to be shot from a bench. It would feel and handle much better in the offhand position, I’m sure. But the test was to prove how well the rifle shoots, which is why I shot it rested.

The long pull length is no hinderance whatsoever. I found that it supports the bullpup configuration and helps you control a rifle that’s otherwise too short.

If this is a rifle that fascinates you, I would have to say it’s probably a good one to get. I’ll still shoot it at 50 yards, but I believe today’s test shows all that you wanted to see.

Evanix Rainstorm 3D bullpup: Part 2

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

Part 1

Evanix Rainstorm 3D Bullpup
Evanix Rainstorm 3D bullpup

Well, the opinions of this rifle are sharply divided. People either love it or hate it, and nothing in between. A few haven’t made up their minds yet; but when they do, it’ll be one extreme or the other. The Evanix Rainstorm 3D bullpup is as far from a Diana model 27 as an air rifle can get.

Blog reader Rob is the only owner who has commented, thus far, and he says he loves his .25-caliber bullpup. He reports getting 25 good shots per fill and wants one in .177 for the greater shot count and 9mm for the additional power.

Some things I missed last time
I forgot to mention that there’s also a Picatinny rail under the forward part of the gun. This would be for a laser, flashlight or bipod.

I also failed to mention that the trigger is adjustable for both first- and second-stage pull. The second-stage adjustment is a sear contact adjustment, so you must be careful not to go too far or the gun will either become unsafe or won’t cock at all. After I see how the trigger is out of the box, I may attempt some adjustments.

Assumptions
Many of you took my comments too seriously last time. I mentioned that bullpup designs are notorious for poor triggers, and you assumed that this rifle’s trigger is bad. I haven’t tested it yet. It may be fine. We won’t know until I have the chance to shoot the gun.

And some of you criticized the gun for not having open sights. That’s like criticizing a Dodge Viper for not having a trailer hitch! The design of a bullpup doesn’t lend itself to the use of open sights. I don’t know of any bullpup firearms that have open sights, either. Compasseco used to sell a sidelever spring rifle bullpup that had open sights; but when you saw how high they had to be to be seen by the shooter, you understood why optical sights were preferred.

The magazine
The magazine is loaded through the larger hole on the left at the back. The back is the side where you can see 2 holes, while there’s only one hole visible at the front. The pellets do not drop into their holes. The have to be pushed in with something like a ballpoint pen. Once in, rotate the magazine one click counterclockwise and load again. Keep doing it until all 11 pellets are loaded.

Evanix Rainstorm 3D bullpup magazine
Load through the larger hole on the left. The pellets will not enter the magazine without a push from a ballpoint pen.

Velocity testing
Looking at the published velocity of the .22-caliber rifle I’m testing (1,176 f.p.s.), I decided that the gun wants to shoot heavy pellets. With all that power potential, this is potentially a 50 foot-pound air rifle, according to those numbers. The first pellet I loaded was the JSB Exact Jumbo Heavy pellet, which weighs 18.1 grains in .22 caliber.

Evanix Rainstorm 3D bullpup pressure gauge
This is what the on-board pressure gauge reads when the gun has 2,900 psi inside.

The gun does not have a flat power curve. It drops in velocity from the first shot to the last, similar to many other Korean-made magnum PCPs I’ve seen. The shot count is simply how far down you’re willing to allow the velocity to drop. The next numbers for the JSB Exact Jumbo Heavys should explain everything.

Shot     Vel.
1……….1045
2……….1033
3……….1020
4……….1022
5……….1006
6……….1008
7…………997
8…………991
9…………981
10………..971

Average (shots 1-10) 1007 f.p.s.; energy — 40.72 foot pounds

Shot     Vel.
11……….959
12……….948
13……….939
14……….926
15……….915
16……….910
17……….898
18……….892
19……….882
20……….874

Average (shots 11-20) 914 f.p.s.; energy — 33.58 foot-pounds

Shot     Vel.
21……… –
22……….867

After seeing the first string of 10 shots, I normally wouldn’t go any farther; but I know several of you may be curious to see if the gun ever settles down and delivers several shots of similar velocity. As you can see, it never does. After this string of shots, the pressure in the reservoir was 1,400 psi, so the gun was shot out. I call that 10 shots per fill.

If the valve were tuned to deliver about 30 foot-pounds, there would probably be a group of 20 shots or so that were similar in velocity. As the rifle is now, it is running flat out, as fast as it can from start to finish.

Beeman Ram Jets
Next, I tried the obsolete Beeman Ram Jet pellets. They weigh 16.5 grains and combine the dome and wadcutter shapes. After a fresh fill, they averaged 1026 f.p.s. for the first 10 and they ranged from a low of 997 f.p.s. to a high of 1051 f.p.s. As with the first pellets, the velocity fell straight from the first shot. At the average velocity, this pellet averaged 38.58 foot-pounds.

Eun Jin domes
The last pellet I tried was the 28.4-grain Eun Jin dome. I tried it for two reasons. First, I wanted to see if they would feed in the magazine. They fed perfectly, so this is a pellet you can shoot in this rifle — at least in .22 caliber. Second, since this was the heaviest pellet I could get through the magazine, I wanted to see what kind of energy it might develop.

Eun Jins averaged 877 f.p.s. for 10 shots on a fresh fill. The low was 844 f.p.s. and the high was 907 f.p.s. At the average velocity, this pellet generates 48.51 foot-pounds of energy at the muzzle.

Trigger
The trigger changed behavior, once the rifle was cocked. It became as stiff and creepy as the bullpup reputation has caused us to expect. However — and this is very significant — I adjusted stage two by the owner’s manual, and the pull became crisp and the letoff dropped to 6 lbs., 10 oz. This was as low as it would go and stay cocked because of the direct sear adjustment. There just wasn’t anymore contact area to play with after I finished adjusting it.

So far, so good. It’s obvious from these figures that this rifle is meant to be a hunting air rifle — pure and simple. Oh, and the discharge sound is a very loud number 5 on the Pyramyd Air sound scale.

Evanix Rainstorm 3D bullpup: Part 1

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

Evanix Rainstorm 3D BullpupEvanix Rainstorm 3D bullpup

Today, we’ll begin to look at the Evanix Rainstorm 3D bullpup precharged rifle — one of the most different air rifles we have ever examined. It comes in .177, .22, .25 and 9mm, and I’m testing one in .22 caliber. The serial number of the rifle I’m testing today is 12121-1013235.

When I first saw a photo of this rifle I called it a construction girder with a pistol grip; and now that I have one to hold, nothing changes that description. I am impressed by the weight of 7.8 lbs. without a scope. It feels like more because the whole rifle is only 27 inches long. Everything on the rifle suggests compact, so the mandatory scope should be a mini SWAT from Leapers or perhaps a Bug Buster.

In .22 caliber, the velocity from the 17-inch barrel is rated as 1,176 f.p.s. That’s pretty specific, and I’m thinking they used a very light pellet to get it. Perhaps even a lead-free pellet was used. I’ll be shooting the rifle/carbine/bullpup with the best lead pellets that produce the best groups, so the velocity may not be quite as high as the rating.

Bullpup
This rifle (it’s really a carbine because of how short it is) is a bullpup, so let’s start with that. Bullpups are rifles whose triggers are moved forward so their actions can sit at the back of the gun. The conventional buttstock is either eliminated or radically repositioned on the rifle. Instead of 14.50 inches of buttstock that does nothing but provide an anchor point for your shoulder, this Evanix Rainstorm 3D bullpup puts the action back where the buttplate is. That cuts a lot of length from the rifle.

In firearms, the bullpup design is a safety concern because your neck and head rest on an action where up to 50,000+ psi of pressure gets generated with every shot. If anything lets go, your safety glasses can’t protect you from the blast. I had a rifle let go last year, so I know what I’m talking about. My Nelson Lewis combination gun blew the nipple and hammer off the barrel when it let go. Had my face been there, I probably would not be writing this report right now. We never did find the nipple!

But a PCP airgun uses just 3,000 psi pressure or less — not 16,000 psi (approximate pressure on the black powder in my vintage gun) and more. So, the risk of an accident is virtually nil. If you’re going to have a bullpup, this is the kind to have!

Moving the trigger forward means all bullpups have a long linkage between the trigger blade and the actual sear mechanism. Because of that, they’re notorious for having creepy triggers. The test rifle has the long linkage, but I’ll evaluate the trigger-pull in my report of the accuracy because that’s when I really get to test the trigger.

Evanix Rainstorm 3D Bullpup trigger linkage
The trigger linkage is about 13 inches long. The real trigger is back by the butt. It’s that silver thing sticking out of the bottom of the gun on the left side.

Mechanical action
The rest of the rifle’s action is mechanical. No electric motors or batteries are involved. The rifle is a bolt-action repeater with the bolt connected to a sidelever located at the right rear of the butt. The magazine is a spring-loaded circular affair that holds 13 pellets in .177 caliber, 11 pellets in the .22 caliber I’m testing, 10 pellets in .25 caliber and 7 pellets in 9mm. The magazine advances as the bolt is cocked, so all you have to do is keep working the sidelever. The safety is manual. Once the rifle is cocked and loaded, you’re ready to shoot.

Evanix Rainstorm 3D Bullpup magazine
The magazine is the same spring-loaded mag used by other Evanix PCPs. Two come with the rifle. Here you see both sides.

I cycled the action to learn about the safety, and I can tell you the cocking stroke is easy and smooth. Unlike some sidelever PCPs, the Rainstorm 3D feels like a luxury sedan car door opening. Given where the cocking handle is located (at the rear of the gun), that’s an important point.

Sights
The 3D comes without sights, but a Picatinny rail runs almost the full length of the top of the gun, giving you nearly infinite choices for scope or dot sight positioning. I mounted a new 3-9X32 UTG Bug Buster scope on which I’ll report separately. I mounted it because I wanted to make certain that scope would be high enough to use, given the very straight line of the bullpup’s profile.

The new Bug Buster comes with medium-high scope rings that are UTG’s new Weaver quick-detachable model. This is a high-end scope ring that others might sell for $30 or more but is included in the package with the scope. I find them to work okay, but I know many shooters will want a high ring to raise the scope higher to their eye level. I use what others have called the bazooka hold, which is the bottom tip of the butt pressed into a hollow on top of my shoulder. Many shooters prefer to have the butt contact the shoulder lower, and that requires high rings. Just keep that in mind when scoping this rifle.

There’s no magazine clearance problem with the top of the rifle because the magazine is covered by a synthetic plate on top of the action. When you mount a scope, there are no clearance concerns.

Evanix Rainstorm 3D Bullpup magazine opening
The magazine opening is under a synthetic plate, so scope clearance is never a problem.

The rifle
This is an all-metal rifle. It has no wood on it anywhere. There are a couple parts made from synthetics, like the grips, but the main component is metal.The metal that isn’t blued is anodized an even medium brown, lending a very attractive high-tech look to the gun. The buttplate is covered with a thin rubber pad so the rifle can be stood up against something and not slip on the floor.

The barrel is enclosed within a fat shroud, and there appears to be a chamber in front of the muzzle that might help attenuate some of the muzzle blast. A rifle of this power is going to be loud, so let’s hope this chamber does lower the sound, if only a little. The barrel shroud is deep inside the girder-like framework of the rifle. You have to look hard to see what’s barrel and what’s reservoir.

The reservoir is filled with a proprietary quick-fill probe that’s supplied with the rifle. It has male screw threads that attach to a 1/8″ BSPP coupling that’s very standard on fill hoses today. The rifle is filled to 200 bar, which is 2,900 psi. Although there’s a pressure gauge on the gun, trust your fill-device pressure gauge for the fill because its accuracy should be well-established.

The Rainstorm 3D is a different precharged air rifle, make no mistake. The look, feel and operation all have to be tailored to the bullpup design. Even though the controls are all fairly standard, except for the bullpup trigger with its long linkage, this rifle will probably take some getting used to. Given its power and cost, I plan on testing it out to 50 yards for you, so this should be a very interesting report.

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