http://www.reloaders.co.nz/shop/Storage/Ammo+Boxes/Used+Army+Steel+Ammo+Case+2.html
Type: Posts; User: res
http://www.reloaders.co.nz/shop/Storage/Ammo+Boxes/Used+Army+Steel+Ammo+Case+2.html
I have seen them at reloaders/gun city etc
20mm and belted grenade ammo tins are good foe well over a slab