The Caldwell Ammo Box is optimized to drop ammo into the Caldwell Mag Charger, and is great for long term storage. It holds 50 rounds for quick and easy loading on the range. The lid is removable and nests within the bottom cavity. A durable polymer design guarantees that this ammo box will be extremely tough and last for years. With a capacity of 50 rounds of .223, 5.56x45, or .204 it can be brought along on every range trip or used for long term storage of your precious ammunition.