well heck this is new....

[skeet]

Sounds to me..and don't take it to the bank.. 30 cal die..possibly a 32 cal neck sizing button. Or undersize neck and regular 30 sizing button on the decapping rod. Saw that happen once..or twice. Case goes in....Hard.....then not wanna come out.. Hey Dan..a friend had a whole lotta 7.62 brass that had been shot in a GE gun..even with small base dies. it would size down..then slowly spring back to too large for most anything.. Wouldn't chamber in an M1A anyway..