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Joined: Sep 2005
Posts: 2,799
Campfire Regular
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OP
Campfire Regular
Joined: Sep 2005
Posts: 2,799 |
With the rather brisk rise in the price of .223/5.56 ammo, are .22lr conversion kits worth looking into for keeping up with training/practice? What type of accuracy do these units produce - acceptable?
While I have a decent supply of .223 components available, I have plenty of .22lr on hand that I'm seldom using (in fact, I'm not even sure if my 10/22 has a scope on it right now.....).
Give me the skinny........
Kaiser Norton
The Kaiser- "If it ain't broke, I can fix that!"
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Joined: Nov 2006
Posts: 10,163
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2006
Posts: 10,163 |
They can work rather well just not as accurate as some would like. I bought a S&W 15-22 and don’t regret it. Lots of options.
I think CMMG has a pretty good following on the kits.
Last edited by TWR; 09/17/20.
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Joined: Nov 2017
Posts: 245
Campfire Member
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Campfire Member
Joined: Nov 2017
Posts: 245 |
I just got a CMMG bolt, Right to Bear (made by CMMG) 9" 22lr barrel, and a couple CMMG mags from RTB, to make a dedicated 22 upper. I'll put it on an inexpensive standard stripped upper I've got laying around. After doing some research I came to the conclusion that running 22 lr through a 5.56 barrel with a 1/7-9 twist barrel was not the route I wanted to take because of accuracy concerns. I think the bolt only conversions are good for high volume practice where accuracy isn't a major concern. I'm hoping to do some small game hunting/pest control with mine, if it proves to be capable. I'll report back with performance once I get a handguard and barrel nut.
Check out Right to Bear for components. Botach had some deals and conversion bolts and mags too
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Joined: Sep 2001
Posts: 19,052
Campfire Ranger
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Campfire Ranger
Joined: Sep 2001
Posts: 19,052 |
The 22 conversion kit in an AR is kind of a perfect storm for poor accuracy.
You've got a slow ass lock time, big swinging hammer introducing excess monkey motion, a long jump to the lands, an oversize bore with the wrong twist for 22 rimfire, and much longer barrel time vs 5.56.
I think it's not a horrible thing to have, and use. But you have to keep your expectations realistic.
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Joined: Sep 2020
Posts: 30
Campfire Greenhorn
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Campfire Greenhorn
Joined: Sep 2020
Posts: 30 |
The 22 conversion kit in an AR is kind of a perfect storm for poor accuracy.
You've got a slow ass lock time, big swinging hammer introducing excess monkey motion, a long jump to the lands, an oversize bore with the wrong twist for 22 rimfire, and much longer barrel time vs 5.56.
I think it's not a horrible thing to have, and use. But you have to keep your expectations realistic. I can't speak for the CMMG's accuracy but I"ve owned 8 of the Ciener .22lr kits over the years and in 1 in 9" or 1 in 12" rrifling twists, all grouped 2" at 50 yds, which is twice as much accuracy as you need for snapshoonting practice and plenty of accuracy for taking small game. I'd be lerry of using one with a 1 in 7" twist. Ask about those at AR-15.com and rimfire central. Normal 22lr twist rates are 1 in 16".
Last edited by billyd; 09/29/20.
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Joined: Sep 2001
Posts: 19,052
Campfire Ranger
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Campfire Ranger
Joined: Sep 2001
Posts: 19,052 |
My 50 yard 5-shot groups with the CMMG unit. 14.7" chrome-lined 1/7 twist.
Federal Target - 1.53", had one stovepipe ejection.
CCI Velocitor - 3.10", no malf's.
Aguila 60gr SSS - 2.09", no malf's.
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Joined: Dec 2019
Posts: 17,066
Campfire Ranger
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Campfire Ranger
Joined: Dec 2019
Posts: 17,066 |
Just used one to re zero a scope that I monkeyed after the windage zero screw stuck and threw it off a great number of clicks... Seemed to do pretty well . Better than my back 40 improvised rest anyway...
Last edited by OldmanoftheSea; 09/29/20.
-OMotS
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