Just jam them and only eject the case. ;-)
🤣
Saw that happen at a benchrest match a couple of weekends ago. Fellow was shooting a 30BR at jam, one load had a little too much jam. He couldn't close the bolt so he forced the bolt open leaving the bullet jammed tightly in the barrel. Problem was he dumped a case full of powder into one of those ball bearing triggers. Guess you're not supposed to flush them out with lighter fluid...
IIRC the Palma chamber has a .050" freebore. Not the optimum length for 175gr bullets.
