I have seen my nephew pull the press bolts RIP them from the table .He's a bull.
After I hammered the case out of the die.Yes, he used RCBS case sizing prep.
The inside of the die had a fine coating of rust.Very even and very fine.Only with a strong flashlight and looking close could it be detected.
Polished out, it worked perfect.
Almost impossible to detect but in a downstairs reloading room.