6.8 spc 1 in 10 or 1 in 11?

6.8 spc 1 in 10 or 1 in 11?

This is a discussion on 6.8 spc 1 in 10 or 1 in 11? within the Defensive Rifles & Shotgun Discussion forums, part of the Related Topics category; I've been thinking about a 6.8spc AR. I've noticed some rifles are 1in10 twist and some are 1in11. Any of you super smarties out there ...

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Thread: 6.8 spc 1 in 10 or 1 in 11?

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    6.8 spc 1 in 10 or 1 in 11?

    I've been thinking about a 6.8spc AR. I've noticed some rifles are 1in10 twist and some are 1in11. Any of you super smarties out there have an opinion on what is better?
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    Not a super-smartie, but...

    In practical terms, there's probably not a whole lot of difference. Heavier(= longer) bullets require a faster twist rate to stabilize them better. So if you think you're going to be shooting just the lightweight varmint bullets, bias your decision to the 1/11 twist. If you will be shooting mainly the heavier bullets (110-130 gr), then lean toward the 1/10.
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    Senior Member Array Texag's Avatar
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    1:11 twist reduces pressure when paired with the SPCII chamber. Check over on 68forums, everyone there prefers 1:11.

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