Hoss50 Report post Posted April 25, 2017 I make my 257 weatherby brass from Remington 7mm Rem mag brass. I lose cases to loose primer pockets too, and occasionally a cracked neck. My guess is about 6-8 firings. Share this post Link to post Share on other sites
azsugarbear Report post Posted April 26, 2017 My load is the Berger 230 gr. OTM over 94.0 grains of RL-33. Velocity is right at 3,000 fps out of a 28" barrel. Slight pressure signs on primers but not on case head. But the load is right near the top of the pressure curve. Got a sticky bolt and flatted primer at 95 grains. Share this post Link to post Share on other sites
Zeke-BE Report post Posted April 26, 2017 My load is the Berger 230 gr. OTM over 94.0 grains of RL-33. Velocity is right at 3,000 fps out of a 28" barrel. Slight pressure signs on primers but not on case head. But the load is right near the top of the pressure curve. Got a sticky bolt and flatted primer at 95 grains. Thats a big bullet going super fast Share this post Link to post Share on other sites