hard extraction

[Old_School]

Thanks for the tips guys, filled the chamber with foaming bore cleaner, let it soak for awhile, then used a chamber brush, then a mop on a drill....now its back to its good ol smooth self.
Shoulda started with that to begin with lol

Yeah, that chamber brush attached to a drill is what I have to use on an old beater AR15 after firing Wolf steel-cased ammo. Carbon builds up something fierce, but that spinning chamber brush & bore cleaner gets all the carbon out!