Out of all the pistols I have owned and fired, this barrel seemed to require the most attention. After putting, say, 50 rounds through, I would carefully clean it, get to a clean patch, check it 3 days later and and see more dark in the barrel. Was I underestimating how much solvent to use? Anything else I have owned, 22 auto, 38 spc and 357 Mag revolver, 44 and 45 revolver did not behave like the 45 Auto barrel. Also, I have tended to fire the 1911 in humid and semitropical conditions. The armorer said that hot barrels sweat carbon later, so extra attention needed.

Your thoughts?