My rule of thumb is if it works don't mess with it. That gun has a 1/10 twist so a 168 gr SMK at 2750 out the muzzle should still be super sonic all the way out to 1000. I shoot 155's in mine but it has a 1/12 twist.
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“How do I get to the next level?” Well, you get to the next level by being the first one on the range and the last one to leave.” – Jerry Miculek
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