Let's throw this question out there. Ok you get your manuals out, find a top end but reasonable target velocity. set up chrono. and go to work only to discover your falling like 2-300fps short of listed velocity with listed max charge. With same powder, cases primer , bullets ,COAL ect. so you start going over book max. charge 1,2 ,3 grs. when do you accept you have a slow rifle or maybe ultra smooth (slick) barrel or other reason to not build the pressure to reach target velocity to where you need more powder to reach pressure ?
Last edited by ldholton; 05/12/17.
