Drew, There have been several cautions about relying on stated pressure ratings of OTC commercially available ammos. Problem is that as long as below SAAMI they are marketable. However, what may be 9500 psi one year might be higher the next year due to component variables such as powder differences. Lloyd's gun barely weighs 5 lbs. meaning barrel walls might be more suited for low pressure rather than SAAMI limits. Morris Baker of RST ammo is consistent with low pressures, year to year. Gil