How do some +p loads have less velocity and energy than standard loads?if my gun is rated for 1250 fps does it matter if it is +p or not as long as it is below 1250 fps? New 9mm
In the cases of 38Special, 9mm Luger, 38SuperAutomatic, and 45Auto (and perhaps others), SAAMI recognizes and documents the +P loadings. See Link Removed for the specifics.There is no SAAMI standard for "+P" or "+P+" ammunition. The meaning varies between ammunition manufacturers.