When ammo burns it poses no hazard of being plugged.

Meaning the lead doesn’t go whizzing.

Your local fire dept might appreciate your informing them of your stockpile should your armory ever go up in flames. They can wait till it all burns off before entering.

Mike

Several hundred rounds of ammunition in a vehicle exploded after a fiery crash Saturday afternoon that shut down I-93 in Bow, according to state police.
— Read on www.wmur.com/article/vehicle-crash-ammunition-fire-bow-new-hamsphire-93/46017598