I have what appears to be a giant ammo can. I think it was originally for holding night vison goggles or some other kind of optic. It was originally full of thick foam padding stuck to the inside. I was able to peel that off and now it's just a giant ammo can. It's current job is to hold .22LR ammo. I believe I have 15 or 20 bricks inside at the moment (still boxed, not loose rounds). Holds a lot! Very strong. But also very heavy with all that ammo inside! Wouldn't want to carry it very far.