Finally got around to sorting out brass from last summer at FRPC (after matches pick up- I don't find even 10% of the .40 I shoot)...
Someone has a really screwed up AK out there.
This is Fiocchi 7.62x39 brass... not bad stuff.
Looks like a fire forming load- false shoulder.
It probably could be FL resized and reused after trimming, but with what surplus 7.62x39 goes for, I won't bother.