I loaded a batch a while back that was about 50/50 old PMC and '11 LC but I haven’t sent any down range yet. Maybe I’ll break them out and see if I get a difference in velocity between the two.
This was the PMC brass with the sealed primers and super tight pockets…
Is the font on the headstamp really tiny? The brass is beefy as hell and the primer pockets never quit.
You can tell the brass by the sound it make banging together. The cases sound like steel… not clangy at all because they’re so meaty.
They’re just a pain in the ass because you have to segregate them off… or at least I do since the capacity is so wildly different.