Mine fast twist 22.250 has a one in 7 twist... and is on an action that use to
have a 243 barrel on it...so the magazine is roomy..
Mine will run 80 grain A Maxes, ELD-M, Sierra and Nosler HP Match bullets
just fine.. and anything else smaller...
just skip the super fragile bullets such as SPSXs etc...
they evaporate right after leaving the barrel...
contrary to slow powder, I find the fastest velocity and best accuracy
on mine with mid range burn powders...4064, 4895, Rl 15, AR Comp...
that was after testing the usual 4350, 4831, RL 19 etc...
