Atchisson 22lr conversion ammo recommendations?
I have a Atchisson 22lr conversion ammunition question, what should I be running through this for best results? I know we need to test several brands what are the top three I should try?
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At roughly $3 a box, you should (hopefully) be able to try more than three.
While you might be able to find a good reliable brand out of three, you probably aren't going to be able to judge best accuracy with only three.
I've found that the following two common brands usually run most semi-auto guns well:
CCI mini-mags (more money)
Federal automatch (less money).
Edit: Many manufacturers advise against using CCI Stingers not because the rounds themselves are hotter, but as Babun says, because the cases are a little longer than normal ones, potentially leading to extraction and/or other problems. The Stinger uses a longer case and a lighter bullet to squeeze out more velocity.
IMO, Stingers are overrated anyway, though lots of people like them. For "serious" work (ie hunting small/medium game or maybe defense), I'd take a look at the CCI Velocitors which use a full 40 grain bullet.
In terms of "legwork" to narrow it down, see above. I've never heard of any gun that didn't run minimags well, and the automatch rounds have been specifically designed to run semi-auto guns (hence the name).
The problem is that .22s autos are variable enough in manufacture that even between different individual models of the same exact type of gun, you can have one that likes one kind of ammo and one that doesn't.
Some guns are "pickier" than others, and many guns will run smoother after break in with a few hundred rounds too. I've found that many guns will run ordinary "target" ammo pretty well. The round nose profile usually feeds well, and the full weight 40 grain bullets tend to cycle fine. IMO, plain lead "target" ammo is actually the best for pistol target shooting, plinking, and (even) defense. Its the most accurate, its subsonic, and believe it or not, tends to create the most energy from really short barrels.
It may not be quite as good for hunting, but that's a different story.0 -
quote:beantownshootah Posted - 06/12/2010 : 2:22:53 PM At roughly $3 a box, you should (hopefully) be able to try more than three.
While you might be able to find a good reliable brand out of three, you probably aren't going to be able to judge best accuracy with only three.
I've found that the following two common brands usually run most semi-auto guns well:
CCI mini-mags (more money)
Federal automatch (less money).
Price is not an object I was looking for higher-quality ammunition anyway. And I know I will probably have to try several Brands out I was just trying to get suggestions to add to the list.I was kind of hoping that someone has already done the legwork to kind of narrow it down[:p]. The manual just says I cannot shoot CCI stingers, I guess due to it being a little hotter round?0 -
The CCI stinger is a longer than normal case for the .22LR. It does have some extraction hiccups in some guns. If your gun feeds and groups the Remington yellow jackets well, I believe they are among the best out there. Bob 0 -
Velocitors are the best for accuracy and reliability in my Ruger 10/22. 0 -
try th aguila 30gr hyper velocity at 1780fps they function all my 22lr kits flawlessly[;)] 0 -
I have an Atchisson conversion unit for my AR. I have found that Federal .22's work best in it. 0 -
I have the same conversion, Air Force model, in a AR. The only problem is the 1-12 twist, instead of 1-16 the 22lr. needs. Any high speed 40gr. shoots fair im mine. 0 -
He learned the hard way about shooting CCI stingers because after about 2000 rounds the firing pin broke and when he got the replacement it came with a manual that said not to shoot CCI stingers[:p]. He tried the federal's but was getting a lot of misfires. So any other high velocity rounds that he shouldn't shoot? Or just stick with any 40gr round that shoots good in it? He was asking about Eley ammunition are they any good to try or would there be a velocity problem beating the bolt back to hard and break something? 0 -
Everything I have - Brownings, Win 75, High Standard pistols, even JC Higgins 31 - shoots excellent with Aguila Standard velocity 40 grain ammo. Don't know if it will work best for you but give it a try.
Lapua sells some fairly expensive ammo of differing diameter, may be helpful putting a 22 down the .224 diameter barrel.0 -
quote:Originally posted by D@D
He learned the hard way about shooting CCI stingers because after about 2000 rounds the firing pin broke and when he got the replacement it came with a manual that said not to shoot CCI stingers[:p]. He tried the federal's but was getting a lot of misfires. So any other high velocity rounds that he shouldn't shoot? Or just stick with any 40gr round that shoots good in it? He was asking about Eley ammunition are they any good to try or would there be a velocity problem beating the bolt back to hard and break something?
In terms of "shouldn't" shoot. . .CCI Stinger is the only ammo I know that uses the longer than standard cases.
If you're worried about longevity of the conversion unit, then I suppose you'd want to use the least powerful ammo that will consistently cycle the gun. That said, I actually think you'd have a hard time wearing out one of these conversion units with pretty much ANY .22 ammo.
Which exact ammo you want to use depends on what exactly you are shooting.
For simple training or informal shooting (which is probably what you're going to be doing with said conversion) then any .22 ammo that runs well should be fine.
Again, personally I find that simple all lead round nose 40 grain "target" ammo does mostly everything I need to do with a .22. Its cheap, accurate, and kills pieces of paper and soda cans just as well as 3x as expensive ammo. Plus its subsonic, which makes it quite quiet to shoot from a rifle. . .which is a nice plus.
Even forgetting about the longer case issue with Stingers, I really see little use for hypervelocity ammo like it except maybe for hunting purposes. I guess you do get a little flatter trajectory out at distance, but if you're not pushing things out past 50-75 yards, then who cares?
Supposedly the 60 grain Aguila "subsonic sniper" ammo works reasonably well with the faster twist rate that you find in most AR rifles (as opposed to dedicated .22LR rifles).
Eley match ammo is extremely accurate, but its also quite expensive, and at nearly the cost of centerfire ammo, personally I wouldn't "waste" it in an AR-15 .22LR conversion, where the platform itself isn't set up to take advantage of the increased accuracy.
If you mean the purple box Made in Mexico Eley "Sport", that ammo is actually made by Aguila (not in England or Europe by Eley) with the Eley name licensed, and I suspect its identical to the Aguila 40 grain solid lead target ammo.
For its price its reasonable plinking or informal target ammo, but it surely is NOT as accurate as the "good" stuff.
So far as I know NONE of the "Eley" branded ammo is powerful enough to worry about long term use of it damaging guns, and certainly NOT the target ammo, which is designed (like most match ammo) to be subsonic.0
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