Standard pistol primers will start to flatten at about 20~30k psi, depending on brand name and magnum as opposed to regular. Looking at a 9mm can run as high as 35k psi for standard masses and as much as 38,five hundred psi for 9mm +P, there's no doubt . 1 https://210mfederalprimers07284.review-blogger.com/53931663/everything-about-federal-large-primers-for-sale