LOOK at the 450 bushmaster it has a 1 in 24 twist the 250 ftx is 2200fps carbine gas change that to rifle and now you have 2500 to 2900 fps ok now look at the 1,12 twist 358 win load 250 jackted sp is 2200 at 49.400 psi I think the 308 case is rated at 62.000 maxt
How does this sound 18 ss in 1,12 twist whit med length gas or will 338 federal be a beater for more destine the 338 would 1-12 twist whit rifle length gas it will be made by mcowen thank for all the help