I tried it on my new Winchesteer brass and just broke the sharp edge of the primer pocket, "trouble" vanished. CCI 250 – While not promoted as part of CCI’s “benchrest” series, many say these primers generate good consistency for any magnum rifle. I've a buddy that shot federal fusion https://zionbhmjg.pages10.com/not-known-facts-about-federal-m215-primers-67362473