Conventional pistol primers will start to flatten at about 20~30k psi, based on brand name and magnum vs . standard. Looking at a 9mm can operate as large as 35k psi for typical loads and up to 38,five hundred psi for 9mm +P, there is no doubt . CCI 250 https://winchester-small-rifle-pr48364.designi1.com/53320872/5-essential-elements-for-federal-205-primers-for-ar-15