Normal pistol primers will start to flatten at about twenty~30k psi, based upon manufacturer and magnum compared to regular. Considering a 9mm can operate as substantial as 35k psi for standard loads and nearly 38,500 psi for 9mm +P, there isn't any doubt . Increase to quotation Only display this https://griffinuidhq.widblog.com/86890688/what-does-federal-primers-for-9mm-mean