Thats funny.
I only get concerned when its more than 3 stacks of crates, from floor to ceiling. In which case I find yet another alternative place to properly store ammo. As said, ammo usually just pops away in a fire, it doesn't travel at 3000 ft/sec for miles on end.
I'm more concerned that if I did have a fire, how could I cut down my losses of ammunition that I've stored? some of it somewhat irreplaceable due to market restrictions.
