Abstract: A new and improved cartridge box apparatus for storing a number of cartridges includes a plurality of walls which define a storage space and a first opening for receipt and removal of cartridges from the storage space. In a first preferred embodiment, the cartridge boa is suited for cooperation with the vest or pouch on a shooter's jacket. In a second, alternatively preferred embodiment, the cartridge storage apparatus includes means for ejecting a cartridge from the side of the storage space and inserting a spent shell in the top of the storage space. In addition, means are disclosed for conveniently mounting the apparatus on a belt worn by the shooter.