The Firing Line Forums - View Single Post - Over- and understabilization

jmr40 · November 11, 2017, 09:14 PM

All correct, but the OP specifically asked about shooting 22 RF through a 1:7 AR barrel. I know there are conversion kits for this, but I don't know how well they work.

Normally 223/5.56 rifles are 1:7, 1:8, or 1:9 twist. Most common bullets do pretty well with any of those, but the ones on the extreme end of the spectrum do suffer some. Most 22 RF barrels are 1:16. That is a pretty big difference. A 36 or 40 gr 22 RF designed to be fired in a 1:16 barrel might not do well in a 1:7 twist. It may do fine, but if so why do 22 RF rifles not come with faster twists.

I simply don't know. While others have given correct answers in a general way, I don't think anyone has addressed the specific question.

November 11, 2017, 09:14 PM	#5
jmr40 Senior Member Join Date: June 15, 2008 Location: Georgia Posts: 10,809	All correct, but the OP specifically asked about shooting 22 RF through a 1:7 AR barrel. I know there are conversion kits for this, but I don't know how well they work. Normally 223/5.56 rifles are 1:7, 1:8, or 1:9 twist. Most common bullets do pretty well with any of those, but the ones on the extreme end of the spectrum do suffer some. Most 22 RF barrels are 1:16. That is a pretty big difference. A 36 or 40 gr 22 RF designed to be fired in a 1:16 barrel might not do well in a 1:7 twist. It may do fine, but if so why do 22 RF rifles not come with faster twists. I simply don't know. While others have given correct answers in a general way, I don't think anyone has addressed the specific question. __________________ "If you're still doing things the same way you were doing them 10 years ago, you're doing it wrong" Winston Churchill