Stubblejumber hit the nail on the head, regular old Hoppes # 9 is for powder fouling, not for copper removal. The fouling indication you were getting with the sweets was probably from you jag and brushes. I use Hoppes to soak the bore, 10 passes with a bronze brush to remove powder fouling, then run several patches until clean. Then I switch to Shooter's Choice (my preference) and a nylon brush until no sign of copper fouling is present. I then use the Hoppes to neutralize whatever copper solvent was left in the bore and apply a coat of oil.