If I look into the bores of all my rifles with a Bore Scope (Hawkeye),
I find a bore clean of powder and dirt but with streaks of copper in the rifleing grooves particularly about 2/3 barrel length from the breech end. I reclean with anything from Hoppes #9 to Sweet's 7.62 Solvent to Barnes copper cutter to bore paste to Brownells JB bore cleaning compound. I mean this copper will not clean out. So either my rifles are the exception or the press really does not mean a "clean bore" but rather a "clean enough bore". Any thoughts?
WR