.177 Semi-auto with low-medium power?

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cola_cans_fear_me!

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Dec 3, 2022
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Cleveland, OH
Do any of the semi automatic precharged air rifles have adjustable output power? Or is the mechanism tied to the power setting so you really don't ever want to change it?

It seems to me that the battery operated Evanix would be the way to go here, but they are expensive if you can even find one.

I also don't need more than around 12 ft lb or so to keep those pesky pop cans at bay.

And the big question?

How accurate are they?

I am mostly interested in .177

Any information gratefully appreciated!

Thanks.
 
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I shot a LCS SK-19 in .177 at a camping/field target match last summer. I think they said it was around 20fpe but it was SWEET!!! I didn't even know they were made in .177 before it was handed to me to try out.

Super fun, but easy to burn through LOTS and LOTS of pellets VERY quickly.

Oh, it was quite accurate. Nickle size groups at the 30 yard paddles I had out to shoot, quarter size on the 50 yard paddles. Had some steel cubes hung out to 75 yards, roughly 4x4inch cut out of square structural steel. It would group pretty good at that decent. Better than I expected for that far with a .177. It'd probably be more accurate with more patience on the part of the trigger puller, as I was cranking off the next shot as soon as the paddles quit spinning.
 
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Not .177 but I did just get an AEA HP SS Plus in .22. I really wanted to try and turn it down to around 12ftlb for plinking with the cheap Crosman premiere hollow points.

Turns out the fill port on the plus is on the wrong side of the valve to be regulated. The non plus fills from the tube end and Huma makes a reg.

I was able to clip the hammer and valve spring and the rifle will still cycle at around 90 bar. This makes it around 18ftlb with the 14.3 Crosman.

So, if you get a AEA hp ss and the Huma reg with some tuning you should be able to run 17-18. Not 12ftlb but kinda close and will run an $6 for 500 pellets.
 
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Problem with the battery Evanix semi/full autos is there is no such thing as a shot string with them. It seems all korean guns are made to advertise ft-lbs, which means they only achieve that on first shot with full fill, no shot curve without tuning. Pure descending fps from first shot. There is no hammer spring adjustment due to the electric solenoid that releases and resets the hammer which is powered by a a shaped spring that is very powerfull. Only way to do anything about that would be to put a much more powerfull spring in the valve or have a custom spring made for the hammer. For my .25 Conquest with the factory fun switch, I bought a carbon fiber bottle and put an altaros regulator on the bottle, along with an altoros extended plenum. It shot good accurate strings that way, but damn.... that hammer spring is way overpowered. The my regulator needs rebuilding(more than just o-rings), and I have not bothered. So it has been unused for probably 4 years now. It weighs 8lbs 5 oz as it sits now, balance point at the magazine and feels much lighter when held. The trigger on the battery Evanix's takes some getting used to, but not difficult to get used to it and fire good groups. What I had more difficulty in getting used to with the trigger is making sure you always pull through and hold for a fraction of a second while the electronic solenoid resets the hammer. It happens fast, but if you release the trigger before it is set you will get the hammer position out of place, and have to reset it which isn't hard and takes just a second once you know what you did. It's a good looking gun, balances well, is accurate, and if I had to do it over again I would never buy it. I've used the fun switch on it twice, once when I first got it I fired 2 mags full auto, easily controllable and keep on aim. Second time was after I got the carbon fiber bottle and regulator. Just one magazine, clearly the first shot was a little stronger than all the rest as the regulator could almost but not quite keep up. Never even considered using the fun switch again.

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Not much adjustment, very expensive, high quality, and reliable, but a Steyr ProX Scout would be the ultimate 12 fpe 17 caliber to me.

I mostly plink with my 30 fpe ProX in 22 cal on steel inside 50Y but the Scout described above is what I wanted originally. I traded into the full sized 22 cal I have now otherwise I don't think I could have talked myself into spending retail for a ProX. Not that I don't like my ProX a lot but more so that I don't shoot it much.
 
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@cola_cans_fear_me! I think if you have the money for a battery powered Evanix then a Leshiy 2 is within range. They specifically make .177 with preset fpe ratings in line with your original request. Here they are in a more compact ‘pistol’ form https://www.edgun.shop/collections/leshiy-2-250mm-350mm/products/leshiy-2-ear?variant=39782865141794

But can also be ordered with a long barrel to make it a rifle/carbine
https://www.edgun.shop/products/leshiy-2-valkyrie-177

Am I correct in assuming you want a .177 to maximize velocity while staying under the power limit?
 
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cola_cans_fear_me! said:
Thanks for the excellent rundown on the Evanix, it doesn't sound as elegant as I was hoping for. I was thinking about a tank mounted regulator though, but I am a little concerned about yours needing a rebuild. Do you think it failed prematurely or was it just time for some attention?
Click to expand...
I don't know if it failed prematurely, but I feel it probably did. It lasted a year and a half+ before it started to act up. Once it got a little creep and slow to recover, it became unusable in very short order. It needs a full rebuild, not just orings according to the emails I had with altaros back then. Wasn't going to cost much to get the parts from them, I just let it go as I liked my cricket a lot more. Now my cricket hasn't been used in well over a year since I love my Uragan 22 compact, does everything I want with pellets and fits me better.
 
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Well, now that I have been going down the google rabbit hole for a solid week I have taken in so much information that I am at the stage where I am getting more confused instead of more confident! :⁠-⁠)

I must admit that the Sk19 looks very attractive. It looks almost perfect but I haven't committed yet.

The EDgun Leshiy 2 is not quite what I am looking for, but I am attracted to some of the other EDguns.

I like the .177 for the flat trajectory and believe it or not the lack of energy because of the ricochet potential where I live, and the possibility that I will give Field Target a try at some point. I realize that I probably should be looking at single shot rifles, but I am much too lazy for that!

I must admit that the Huben K1 looks like a doll, I have been furiously googling it but I am googled out for the time being!

I am a little concerned about whether or not barrel length equals accuracy though.

I have not really looked at the Steyr Pro X very much because I want to stay married!
But what a beauty!

Thanks for all the input everyone, I am going to be on the fence for awhile with all these options.
 
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You want a versatile gun? Kelly will build you a K1 in .177, it's a beast for a .177. It can go from barn safe to a fire breathing monster. I've set the reg at 100bar and just using the powerwheel I've gone from 300 fps to over 1200fps. Kelly said he was running north of 1400fps with reg set at 150bar using a 16.5gr slug. I used a TJ barrel with a 1:18 twist. Kelly said he did a .177 with a bull barrel, that should be one solid rifle. I've yet to establish the full potential of this rifle. I've never used a lite pellet, 10.43gr minimum to 16.2gr maximum; 12.5gr to 20.5 NSAs. I own 3 K1, one in .177, one in .22 and a .25. I use the .177 more frequently than the .22 and .25 combined. I highly recommend the K1 platform and Kelly is the best, bar none.
 
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