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Posted: 5/12/2021 12:11:24 PM EDT
[#1]
Do you mean the various conversion kits? Enough for plinking but that's about it. A dedicated 22lr upper would not use an AR barrel.
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Posted: 5/12/2021 12:12:08 PM EDT
[#2]
Likely not. First the twist rate will be too fast, but if you happen to have something like the Aguila 60gr it might be better than normal. IIRC the 22lr uses a slightly smaller diameter bore as well.
I’d get a dedicated rimfire. If you want to strap a bunch of bells and whistles on the gun, maybe a 15/22 is a good choice. I don’t think they’re liable to be all that accurate to be making good hits at 100yds though. The Ruger Precision Rimfire comes dressed up with a pic rail and mlok handguard, and are pretty dang accurate. |
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Posted: 5/12/2021 12:15:29 PM EDT
[#3]
No so much bore diameter as it is twist rate. When we had the A1 (1-12 twist) we used the .22 conversion kits and they were pretty accurate ( will never be as accurate as a dedicated 22 rifle or purpose built rimfire upper, but possibly good enough for your purposes?)
With the later faster twist barrels (1-9,1-7) accuracy is usually not great. The military for a number of reasons abandoned the 22 conversions after the 1-7 twist rate. A2/A4/M4 became standard. While you may prefer an AR, for the cost of even the simplest conversion using your existing barrel, you can buy an inexpensive spare .22 rifle ( savage 64’s run about $125) not to mention older used 22’s in the same price range. |
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Posted: 5/12/2021 12:15:48 PM EDT
[#4]
50 yds pushing it for a .22 LR in a 5.56 barrel, reasonably decent accuracy at 10-20 yds. Dedicated .22s are super easy to build and have the proper 1:16 twist. The only issue currently is finding .22 barrels in stock anywhere (watch the EE!).
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Posted: 5/12/2021 12:19:13 PM EDT
[#5]
Ok that is what I thought.
I have been using a Marlin 66 microgroove and it works well, it just is a bit top heavy with a REAPIR sitting on the top, but it does work just fine. Thanks, I guess I will just keep doing what I have been doing, and save some money. |
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Posted: 5/12/2021 12:19:50 PM EDT
[#6]
Quote HistoryQuoted: 50 yds pushing it for a .22 LR in a 5.56 barrel, reasonably decent accuracy at 10-20 yds. Dedicated .22s are super easy to build and have the proper 1:16 twist. The only issue currently is finding .22 barrels in stock anywhere (watch the EE!). yeah, I can't find any |
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Posted: 5/12/2021 2:44:38 PM EDT
[#7]
when I was shooting Service Rifle, I used to sometimes practice Offhand with a skinny barrel A1 20" and the M261 kit,
1:9 twist IIRC, and I was using a 2" sticker at 25 yrds, keeping them all in that 2" sticker was easy, |
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Posted: 5/12/2021 3:10:27 PM EDT
[#8]
Quote HistoryQuoted: yeah, I can't find any Subscribe to the Rimfire EE forum, they do show up from time to time. Get one with the barrel collar, which you'll need in place of the 5.56 chamber adapter that comes on CMMG type conversion bolt. |
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Posted: 5/12/2021 3:25:55 PM EDT
[#9]
I shot a JP barrel 556 with a 22 conversion kit in steel challenge and similar matches and could hit anything I aimed at. Granted that was usually asking for 4" at 50 yards or closer but that's certainly good enough for anything I was trying to do. This was shit bulk pack ammo, too.
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Posted: 5/13/2021 7:14:40 AM EDT
[#10]
Quote HistoryQuoted: I shot a JP barrel 556 with a 22 conversion kit in steel challenge and similar matches and could hit anything I aimed at. Granted that was usually asking for 4" at 50 yards or closer but that's certainly good enough for anything I was trying to do. This was shit bulk pack ammo, too. OP wants to hunt with it... I figure hunting accurate is keeping it on a quarter for squirrel/rabbit and a silver dollar for groundhog/coon size game. Whatever the max distance you can keep a group in that coin is your max effective range to make a hit. IME with HV ammo that’s also about where it runs out of steam anyway. |
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Posted: 5/13/2021 7:20:27 AM EDT
[#11]
I use a CMMG conversion in my M16A1 clone, it has a 1/12 barrel and it shoots pretty well.
In my 1/7 guns accuracy is pretty poor. |
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Posted: 5/13/2021 1:06:17 PM EDT
[#12]
I'm using a conversion kit and T 25 yards, my groups were about 3". I was not trying to shoot tight groups, this was more to test function. The two groups were about 20 rounds each. As long as you didn't rest the magazine on the bench, it functioned flawlessly. It might have something to do with the lower (KP-15), so I will need to do more experimentation. I have a spare lower to try next with that upper.
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Posted: 5/13/2021 1:07:01 PM EDT
[#13]
I posted a test I conducted using 22 rimfire conversions in AR-15’s compared to my dedicated 22 LR AR-15’s and my Savage Mark II bull barrel bolt action. I used the same lot of ammo in each firearm and posted pictures of my targets. I used a 1:9 twist and 1:7 twist AR-15 barrels. The test is in the archives on this forum but is still available at the link below.
https://www.rimfirecentral.com/forums/showthread.php?t=754849 |
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