I went to walmart the other day and bought the cheapest gun cleaner for the oz. It is call gun scrubber it is amazing I just used it on one gun but it does have high pressure and smells so safety googles and breating mask needed for indoors. My dad had to drive to work on a road that was freshly tarred about 7 months ago and we used alot of products to get the tar off, couple sprays and boom it was gone

I shot trap tonight with that gun I used with Gun Scrubber and the barrel is clean! After 50 rounds not 1 speck of Fiocci gun powder left in the barrel and I shot a 21 and 25