I went to the Army Salvage yard for an auction about 15 years ago. Ended up with a whole pallet full of ammo cans of various sizes. I have several that I use in the boat for things I want to keep dry. I bolted a couple of the large skinny ones to the underside of the snow machine trailer to use as a tool box for the lug wrench, spare bearings, grease gun, and a small collection of tools. Many are full of boxes of factory ammo. I have given about half of them away. Always finding uses for the smaller .223 ones.