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Old December 28, 2019, 03:56 PM   #12
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Join Date: December 10, 2012
Posts: 5,249
Originally Posted by Bart B. View Post
SAAMI tests show a 25 fps change in velocity for each inch of barrel length at 30-06 velocities.

I'd get a 1:12 twist 22" barrel for bullets up to 180 grains if best accuracy is important.
Have you found better accuracy with 12 twist than 10 in 175gr and under?
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