Hoppes and/or Kroil are great for powder and primer fouling, but they just dont have the "poop" to get rid of the copper. I have not personally tried Wipe Out, but I do use Outers and Gunslick foaming bore cleaners and they actually work as advertised. In fact, they cut cleaning time tremendously, especially when trying to remove the copper. Give em a try, I dont think you will be disappointed.