Typical pistol primers will start to flatten at about twenty~30k psi, according to brand name and magnum as opposed to standard. Thinking of a 9mm can run as higher as 35k psi for regular masses and as much as 38,five hundred psi for 9mm +P, there is no doubt . https://garrettjxkuf.laowaiblog.com/31037119/the-basic-principles-of-federal-205m-primers-in-stock