I was sent a link for a SAAMI-produced film on the safety of sporting ammo in a fire from the firefighter's viewpoint. This ought to be an aid for anyone concerned about ammo storage from an insurance angle - business or home owner. I wish I knew how to post the link. Maybe one of you can google it and do so.
[youtube]http://www.youtube.com/watch?v=3SlOXowwC4c[/youtube]
They burned up over 400,000 rds of ammo :>( - everything from .45 Colt to .416 Remington; shotshells as well. They burned it in boxes, cases, loose rounds, pallet loads, truck loads, warehouse shelves, etc.
They rammed it with fork lifts and crushed it with a caterpillar tractor, grinding the treads on both cases and loose rds.
They had blast boards set up to gauge distance and impact (like 'Mythbusters'), even standing close to burning ammo in their turnout gear.
Conclusion: not only does sporting NOT constitute a hazard to firefighters, it is less of a hazard than common household commodities like aerosol cans, paint, propane cylinders, chemical compounds, etc.
Now we need one on canisters of smokeless powder. I know that 'Hatcher's Notebook' shows that it isn't that much different than what happened in this test, but that was all smokeless. When it was a magazine holding Naval rifle gun powder charges, it was spectacular!