ragsflh Well-Known Member LRH Supporter Joined May 4, 2011 Messages 399 Mar 1, 2017 #1 building a 300 blackout.16 inch barrel.whats the best size to drill barrel for gas block.also would you use pistol or carbine lenght gas tube? be shooting 120 gr bullets,non suppressed.thanks
building a 300 blackout.16 inch barrel.whats the best size to drill barrel for gas block.also would you use pistol or carbine lenght gas tube? be shooting 120 gr bullets,non suppressed.thanks