High-volume shooters, you don’t have to trade performance for price. With UMC, you get both quality and affordability. Please note that Metal Case is simply Remington’s name for Full Metal Jacket. MC and FMJ are the same thing.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.