The Dillon .38/.357 100-round Ammunition Box is used to store cartridges (loaded ammunition) in the following range of calibres: .38 Super, .30 Carbine, .38 Spl, .357 Mag.
Dillon's ammo boxes are made of a tough, opaque plastic called "NoBreak". In testing, they dropped a full box of 45ACP ammo off the second story onto the concrete floor; nothing was broken, the box didn't even come open!