QFTI am going with a sealer just because it is so even on every single case.
It does look like oxidation but I have never seen it so evenly distributed.
You could always clean a few with a toothpick (or similar) and see if it comes back. Or shoot them.
If OP is worried, he can send them to me and I will dispose of them free of charge.
I was hoping he skimmed over your response and saw mine.Hey get in line.
I would shoot them in my Glock. Wouldn't run them through anything I cared about; just in case.
I was hoping he skimmed over your response and saw mine.