PMC Bronze .357 Magnum JSP 158 Grain 50 Rounds
PMC Bronze .357 Magnum JSP 158 Grain 50 Rounds, All PMC Bronze Ammo passes rigorous inspection at PMC's electronic powder-check station, which instantly and accurately measures the propellant charge in each round. If the propellant in any cartridge varies by as little as two-tenths of a one grain, the system stops, and the cartridge is discarded. No other ammunition manufacturer can assure greater uniformity and reliability than PMC.