I recently saw a show with some Green Beret snipers that were talking about how they only cleaned their rifle bores by running several patches through them but not cleaning the copper fowling. He said that when he left the copper in, his shots were more accurate. He started from a totally clean gun. Then after 20-30 shots he cleaned it with 5-10 patches only (not scrubbing out the copper fowling) as this made the gun more accurate. Not sure how or why this happens, so I thought I'd bring it to the pros. How do you clean your hunting rifle? Chris Wanna kill these ads? We can help!