Regular pistol primers will begin to flatten at about 20~30k psi, dependant upon model and magnum versus typical. Contemplating a 9mm can operate as high as 35k psi for standard hundreds and up to 38,five hundred psi for 9mm +P, there's no question . 1 Reply This is an older https://winchester-small-pistol-p31726.blogerus.com/54319930/the-ultimate-guide-to-federal-gm205m-primers