I've got a rough but very accurate barrel on my semi-factory ruger (consistantly shoots .2-.3" at 100yds-half MOA and better out to 500yds-from what I hear, I must be pretty lucky!).Anyway, Ive been using Butch's B S and it isn't getting all of the copper out. The fouling hasn't affected accuracy yet but it still bugs the hell out of me! What do you guys use to get tough copper fouling out of barrels? Ive heard really good and bad things about sweets copper solvent-(I bought a bottle today but I'm not going to use it till I know the truth). Should I just except the fact that it's a rough factory barrel and be glad that accuracy isn't suffering? I sure hate those ugly, stubborn, orange streaks-every time I clean my barrel they just seem to say, "screw you!!"