Standard loads are about 18,000psi [300 @ 1850] SAAMI specs are 27,000 psi. PMC [350 @ 2100 ] are loaded to 38,000psi. The PMC is excellent for heavier game such as elk ,more than needed for deer . I wouldn't use a PMC in any but a new Marlin, Ruger , Browning. Reproductions should stick to standard loads.