I would like to know what knowledgable riflemen look for when looking for fouling in a barrel. I clean my rifles often and my bores are shiney with well defined riflings. Is there more to look for ? I see there is another topic on cleaning that answers a lot of cleaning questions. Also I have been advised to not use the wire brushes in my bores . . .this is what has me wondering if maybe I have fouling that I'm not aware of as I have never used them.