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16 August 2017, 10:30 #1New Member
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22 long rifle conversion and barrel twist rate question.
Myself and several friends have the cmmg 22lr conversion for our AR15. We love them, have zero problems and recommend it to anyone so incline.
So, my question is what barrel twist rates have worked well for anyone else using the conversion kit?
It is my belief the preferred 22lr twist rate for a dedicated rifle is 1-12. Since most AR15's have 1-8, or maybe 1-9 with a few having 1-7, how does this difference affect typical shooters?
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16 August 2017, 11:29 #2Contributing Member
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Twist rate for most all .22LR is 1/16.
I have a CMMG Mk4T dedicated upper.
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16 August 2017, 12:05 #3New Member
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17 August 2017, 03:04 #4Contributing Member
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27 August 2017, 06:05 #5New Member
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Thanks Guys. Very helpful.
I have ordered a 1:16 barrel. Want to compare with my Wylde 1:7.
I now understand 1:16 is ideal, and also understand 1:7 works, but can we expect any reasonable performance without a dedicated 22lr rifle. I kind of like versatility.
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27 August 2017, 09:29 #6Contributing Member
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Generally, issues with conversions is reliable cycling. Since you're already enjoying zero problems now there's no reason to expect that to change. Assuming your new barrel is of quality manufacture, ammo selection is the big accuracy variable with .22lr.
Not sure what you mean about versatility. Generally speaking, the big advantage to a rimfire conversion is for guys who got a ton of money in their rifle but want to keep training expenses down while having their hands on the same rifle. They aren't chasing accuracy with more appropriate rimfire twist rates but rather economical trigger time with their rifle. Otherwise, there's complete rifles that mimic the AR platform and controls well enough, like the M&P 15-22, that you can pick up for pretty cheap these days.Last edited by ChattanoogaPhil; 27 August 2017 at 10:03.
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16 August 2017, 12:14 #7
I still have one CMMG dedicated .22lr upper, though it's the 2" barrel.
1/16 twist.
Looks like all the .22lr barrels on the CMMG website are listed as 1/16.
Never had an issue with 1/7 and 1/8 guns I've used conversion kits on, but then again, they were just plinkers and not super accurate.
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16 August 2017, 18:35 #8
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16 August 2017, 19:00 #9
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16 August 2017, 13:48 #10
I need to build a 22lr
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