For the copper fouling, I suggest BreakFree Foaming Bore Cleaner. It works VERY well at removing copper deposits in the bore and rifling. Not super pricey, and effective. Be sure to avoid getting any on the stock as it will eat the finish with quite a bit of gusto. Foam up the bore, let it sit about 15 minutes, then run patches through until they stop coming out green, repeat until nothing comes out at all after a foaming treatment.