About federal primers for 9mm
Regular pistol primers will begin to flatten at about 20~30k psi, depending on brand and magnum vs . normal. Thinking about a 9mm can run as significant as 35k psi for ordinary loads and nearly 38,500 psi for 9mm +P, there isn't any question .You will need to press tougher the get that nickle to squish again to round while in the seat. I'd pull The