I'm trying to de-Cosmoline an SKS I picked up, and I can't get the gas piston out. Am I going to damage it if I just go at it with a nail set and a big hammer? Do I need to get some actual brass punches?
Also, if I clean everything else, would it be a bad idea to just put it back together, fire a round or two off, and let the gas pressure blow it loose?
Also, if I clean everything else, would it be a bad idea to just put it back together, fire a round or two off, and let the gas pressure blow it loose?