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AR15 twist rate

JKB57JKB57 Member Posts: 137 ✭✭✭
edited April 2008 in Ask the Experts
Ok looking for some sort of sense here,if the 1 in 9 twist on an AR15 will handle up to 75gr bullets then why the 1 in 7 twist used on colts??Is there some advantage to the 1 in 7 I am missing??
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Comments

  • B17-P51B17-P51 Member Posts: 2,269 ✭✭✭
    edited November -1
    1-9 is generally good up to 69 grains. For bullets up to 80 grains a 1-7 is better. The Colt H-bar target model has this twist.Not all colts do , to my knowledge. Someone will be along shortly to help you more.
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