Help, TC Hawken with LRH GM barrel


Well-Known Member
Jan 31, 2012
Tyler, TX
I recently purchased a. 50 cal Green mountain LRH barrel that I think has the 1 in 30 twist. I have tried various lead conicals at 50 yards and am not getting as good a group as the original 1 in 48 barrel.
In fact, I wouldn't consider it on a hunt as I wouldn't feel confident shooting 100 yards on an elk or deer. I am using 70 gr of Black MZ. Conicals range from 390 to 460. Flat based and hollow base type. I run them through a .502 sizer. Anyone shoot one of these barrels that can suggest a load?