royinidaho
Well-Known Member
Is Velocity \'always\' a good indication of pressure?
Am shooting a factory 338 Win Mag. With 74gr RL-19 and Hornady 225 interlocks velocities are 2800+. Pressures seem high as indicated by Fed-215 primers filling out towards the pocket edge and a bit of flatening of head stamp words. No increased effort to open the bolt. Neck sized and reloaded they fit right back in.
Then there's the 75gr of RL-22 and the Sierra 250gr gameking. Pressures 'appear' quite a bit lower as indicated by the primer (edges still rounded) no head stamp deformation but, velocity is right at 2800fps. /ubbthreads/images/graemlins/confused.gif
There must be something I don't know. /ubbthreads/images/graemlins/frown.gif
Am shooting a factory 338 Win Mag. With 74gr RL-19 and Hornady 225 interlocks velocities are 2800+. Pressures seem high as indicated by Fed-215 primers filling out towards the pocket edge and a bit of flatening of head stamp words. No increased effort to open the bolt. Neck sized and reloaded they fit right back in.
Then there's the 75gr of RL-22 and the Sierra 250gr gameking. Pressures 'appear' quite a bit lower as indicated by the primer (edges still rounded) no head stamp deformation but, velocity is right at 2800fps. /ubbthreads/images/graemlins/confused.gif
There must be something I don't know. /ubbthreads/images/graemlins/frown.gif