I don't think I'll be getting any of the Bulgarian stuff. Everybody probably knows or has heard about the bad lots with the "52" on the headstamp. There may be a good chance that there is a bunch of the 52s being mixed with other lots in the Century tins. I would probably have chanced it if it were a couple years ago...when ammo was 10 cents a round. However, when figuring shipping and what have you, the cost is now about a quarter/round. And, with the old stuff, there is bound to be cracks already in the brittle brass...definitely would want to discard them. I think I might wait for the Polish stuff again, maybe some other production...just not worth blasting apart my Yugo or my face.
Also, thanks for the warning, Lahey. Its what I sort of expected, but just wanted to see if there were some other opinions also.