Because I managed to do it, 3 times actually.
9mm, very lightly used 70s rcbs carbide sizer.
I sized about 200 pcs my first time without issue, which was shot out of my own p7m8.
Then went through a batch of range pickups that I bought off a member here, tumbled, and started sizing/de prime.
first time was without lube, took out de capping pin, and was able to use a punch and hammer to knock it out. Second and third time was with lubing every few or so.
Dies and brass were clean, unsure what caused it. The 3 pcs of brass were all different head stamps.
9mm, very lightly used 70s rcbs carbide sizer.
I sized about 200 pcs my first time without issue, which was shot out of my own p7m8.
Then went through a batch of range pickups that I bought off a member here, tumbled, and started sizing/de prime.
first time was without lube, took out de capping pin, and was able to use a punch and hammer to knock it out. Second and third time was with lubing every few or so.
Dies and brass were clean, unsure what caused it. The 3 pcs of brass were all different head stamps.


Bob B. 
Comment