This came up on the Canon Safe for sale at Costco thread and I figured that discussion should be elsewhere. I do want any links or evidence to this. I chucked some ammo in the bottom of my safe (not any powder, but I could see someone doing so) so as to keep it from easily walking off in case of a break in and too keep better in a climate controlled state. (I have both a Goldenrod and an electronic desiccant device inside). Thinking of a fire, Capn Jack said: I relied that I would think that ammo cans would be little mini bombs in that kind of state, but if true, why would the worlds military use the steel? Certainly during the havoc of war, fires and explosions are not uncommon, so why have lil mini bombs right next to your personnel?