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.You must be 18 or older to purchase ammunition for use in a shotgun or rifle and 21 or older to purchase ammunition for use in a handgun. Ammunition cannot ship to a PO Box or APO/FPO addresses. Always make sure you use the correct ammunition for your firearm. Ammunition cannot be returned for any reason. Please consult applicable local laws before ordering.