Firing pin screws

Originally Posted by Richard Flanders

Kroil is great stuff. Firing pins and the springs can get to be a horrendous mess from blowback and maybe rain and need to be inspected on some time or shot # schedule, I think. I have one hammer gun where the retaining screw must have stripped so someone peened the breech ball into it a bit to hold it so I can't get it out without filing the breech ball who knows how much. Not good. The other pin/spring was a disaster so I'd love to get the other out for cleaning but had to settle for a serious solvent and oil bath. I use the small bronze and sometimes steel brushes a lot to clean parts like that up.

-- soak the jammed retaining screw area for at least 24 hrs. in Kroil- center punch and with either a drill press or mill, at slow RPM- try to penetrate that frozen screw, and break it up within the female threaded area of the breech's ball(s)- then extract by hand-filing the balls of the breech area, maybe Nicht Ser Gut, Ja!!