Let me get this straight, you spent several hours cleaning a brand new rifle bore? What a waste of time. If you're getting indications of copper fouling after using a bore brush, there's a very goodchance it's the brush that causing it. Here's what I do every 20 or 30 shots and it works well for me:I first clean for powder foulingwith Shooters Choice, MPro-7 or Butches Bore Shine. Either one seems to do a good job on powder. I first soak the bore and let it stand for 20 or 30 minutes. Then I wet a bronze brush and brush the bore about 10 or 12 strokes. Then I push all of that out with 3 or 4 wet patches. Then I dry patch that out. Next I clean for copper, but only if I think copper is a problem (i.e., if accuracy is starting to suffer). I use Montana Extreme 50 BMG if I want to get it done right then and there. Otherwise I use Wipeout foam and leave it in for several hours or overnight. Patch that out with 3 or 4 dry patches then follow up with a good oil. Then before I shoot again I make sure I patch out any excess oil. Thats it, it's pretty simple really.