Conventional pistol primers will begin to flatten at about 20~30k psi, dependant upon brand and magnum as opposed to standard. Contemplating a 9mm can operate as high as 35k psi for ordinary hundreds and approximately 38,500 psi for 9mm +P, there is not any question . I have been reloading https://arthurpnida.blog-eye.com/31956848/what-does-federal-gold-medal-small-pistol-primers-mean