Okay so I'm working on getting a G22 to swallow PC pills. There are some issues. I'm using an OEM barrel and also an Alpha Wolf barrel. I had run about 20-30 rounds of HF red and ended up with some really hard deposits in the OEM barrel. The thing is I can't swear they weren't there before but I've put many thousands of copper plated down the pipe and had not seen anything. I had wanted to try an Alpha Wolf barrel anyway, so I contacted the Barrel Fairy and sure enough a new barrel magically appeared before too long. Long story short is I ran about 30-40 rounds through the new barrel (Smokes power this time just in case it was a HF issue) and no problems. I ran brush and dry patch through the barrel after 1 round then another 2 rounds, 5, 10, and then finally 20 rounds. Barrel was clean as can be after each set. Win, yippy, whoohoo, do the snoopy dance, etc. So I loaded a few hundred rounds and proceeded make holes in paper, life is good. Well I was wrong, some of the same deposits. I have a number of theories as to why (pills too small, too hard, etc.) and I will explore them in due time. First I need to get this stuff out. So far I have try Shooters Choice with lots of scrubbing and even soaked the whole barrel for a few days. Nothing with Hoppe's #9 either. At this point I wasn't sure if it was PC or carbon so I soaked the barrel in acetone for a couple of days, same result. The stuff is coming out, I get some black on a patch (actually a noodle of paper towel) after I scrub. The thing is at this rate I'll need to intermittently scrub my barrel for a month before it's clean. I mean I have no problems with using elbow grease but... Any ideas so I don't have to reinvent the wheel blow up my arm/elbow? I'm contemplating a soaking type carburetor cleaner, it shouldn't harm the metal but I'm not so sure about the finish. I let some Kroil sit in the barrel overnight also and I have some JB paste on the way. Oh, I've used about a quarter of a copper (not plated) scrubby pad worth of strands on a bore brush in the process of this. If it helps, the fouling starts past the throat and then peters out about and inch or so down the barrel.
Thanks
Swamp