I had a few mangled 50 BMG rounds I picked up a range at a while back doing army things. I was more worried about moisture in them so I wore more PPE then usual and covered the pot after putting in stuff with a long spoon.
Ok so I step back to sit down and a TRACER lights up with a loud hiss for a second or so, I unplug the pot (Lee 10lb) wait a while and uncover the pot. It's all black but looks undamaged, hmm all the rounds were fired and mangled so I guess that one didn't light up. Well so melting stuff from military ranges probably isn't worth it.