Standard pistol primers will start to flatten at about 20~30k psi, based on manufacturer and magnum vs . normal. Looking at a 9mm can run as higher as 35k psi for regular masses and approximately 38,five hundred psi for 9mm +P, there is not any question . "Provided ample penetration, https://miloymjdw.canariblogs.com/federal-215-primers-100-count-for-dummies-46971682