Very interesting video by SAAMI testing possible hazardous situations with ammunition in fires, dropping from 65 feet, stuck by bullets, crushed by bulldozer, etc.
Over 400,000 rounds of small arms ammunition were used in the various tests.
Very informative, and worth viewing the entire 26 minute video, but summary starting at 23:30 sums it up.
Keep this in mind when you encounter fire fighters or law enforcement types who get all excited at the thought of people having ammunition in any quantity.
I would have liked to have also seen a test with ammo in steel “ammo cans” which are used by many shooters and collectors.