try sweet`s 7.62 or barnes cr10 this is amonia based solvents and will take the copper fouling away. take a nylonbrush and skrub the barrel wait 15min then ram som patches trough it untill they come out clean. then do it all one more time. no if you dont shoot benchrest this will do the jobb.( if the rifle shoots good then you do not need a superclean barrel even some toppnotch barrels are hard to clean but shoots good) and you can use some wd40 and rubb the barrel before you apply the solvent this will clean up some burned powder and other stuff...johan
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