i'm looking to build a 300blackout SBR. i'm looking to keep it around 8" with a 1 in 7 twist. who makes the most accurate barrel and where can i find one without a Long wait. I'm going to pick up my trust today so i do have a little time but would like to to maybe start working up loads with a pistol lower. I want to keep it sub moa would like to keep it .5 moa which i hear is capable. not concerned with money as much as i am accuracy. also i will be shooting sub sonic through a suppressor.
