Check the listing for details. Tall 50 Cal Ammo Can Grade 1 US Military Surplus - 5 Pack. Condition: Used. Listed at 119.00 USD. Commonly used to hold 840 rounds of 5.56, and various other goods. These ammo cans are from different parts of the military, so the stenciling may vary. • Ammunition box Material: Carbon steel SUS304, Aluminum 5052.