Conventional pistol primers will begin to flatten at about twenty~30k psi, based on model and magnum as opposed to standard. Thinking about a 9mm can run as high as 35k psi for normal hundreds and around 38,500 psi for 9mm +P, there's no question . Incorporate to quote Only present https://federal-215-primers-100-c62739.ampedpages.com/considerations-to-know-about-federal-large-primers-for-sale-59016427