Getting a new build under way in 300 blackout. What barrel twist do folks use with a 240gr smk at 1000'/sec. Got a can on the end so I don't want any unstable spoiler rounds causing problems. thanks in advance, cd
really want to go at least 1-8 prob better off with 1-7 . i think the 1-7 is what aac is doing now. with my 1-8 i can see some yaw with really heavy bullets 230 240 range