An ammunition box or cartouche box is a container designed for safe transport and storage of ammunition. It is typically made of metal and labelled with caliber, quantity, and manufacturing date or lot number. A rubber gasket is commonly found in the hinged lid to protect the ammunition from moisture damage. The resealing ammunition box is largely a NATO tradition. Warsaw Pact nations typically stored and transported ammunition in single-use "spam cans". They had crates that had a sealed zinc lining on the inside. In World War II, Duct tape was used to seal opened ammo cans.
Players in the sport of geocaching commonly use ammunition boxes as the containers to hide logbooks and treasures. Used boxes are often sold at military surplus stores.
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