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The Range
Rifle & Shotgun Discussion
1:7 vs. 1:9 on 10.5" barrel
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<blockquote data-quote="ez bake" data-source="post: 718510" data-attributes="member: 229"><p>I know its not a 10.5 or even an SBR (mine's got a pinned phantom), but on my 14.5", I run a 1/7 with no issues out of the 55gr or even when shooting my .22lr with the CMMG kit. Funny thing is that my 55gr and my 69 gr hunting rounds seem to all be at the exact same place at <100yds.</p><p></p><p>From what I've heard and been told, if you have a shorter barrel, its more forgiving to the sharper twist rates with smaller bullets and a longer barrel is more forgiving with a 1/9 and larger bullets.</p></blockquote><p></p>
[QUOTE="ez bake, post: 718510, member: 229"] I know its not a 10.5 or even an SBR (mine's got a pinned phantom), but on my 14.5", I run a 1/7 with no issues out of the 55gr or even when shooting my .22lr with the CMMG kit. Funny thing is that my 55gr and my 69 gr hunting rounds seem to all be at the exact same place at <100yds. From what I've heard and been told, if you have a shorter barrel, its more forgiving to the sharper twist rates with smaller bullets and a longer barrel is more forgiving with a 1/9 and larger bullets. [/QUOTE]
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1:7 vs. 1:9 on 10.5" barrel
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