300 blackout twist

[Jonathan riddle]

I've been looking at uppers for a 300 bo and I'm wondering what is everyone's twist rates

[mwest]

mine is a radical upper with 1/8 twist I also shoot a 110 gr bullet nosler for practice and use a Barnes 110 TAC TX FB for hunting over H110. get great results

[brozilla1]

I have a 1/8 twist 16" love it and so much fun to shoot, reload to shoot? or shoot to reload?

[Scorpion Rider]

AAC originally used 1:8 twist on the factory barrels. Later they went to 1:7 twist.

1:8 is fine for 220 bullets or liter. 1:7 is best for heavier bullets or shorter barrels than 16”. I prefer 1:7 so I never have to worry about stability.

[B.R.O]

My pistol is 1:7, my carbine is 1:11 and my bolt is 1:8.

I personally don’t think BLK cares about twist OR people are over thinking subs. My 1:11 groups subs the same as my 1:7 out to 50yrds. Which is the limit of a subs practical nature.


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