I was cleaning one of my rifles today after some load development. I have always used nylon brushes, a brass jag, and butches bore shine. after cleaning for about 45 minutes I thought I was about done. I noticed my brush was about spent. I couldn't find the nylon brushes at the local gun shop the last time I went so I picked up 2 brass/copper type brushes( there copper in color?). I decided to try one of these brushes before calling it clean. To my surprise the path following the brush came out dirtier than I have ever seen a patch come out of one of my rifles. I was somewhat bewildered by this. I figured it must have been because the other brush was so worn out. So I cleaned in a rythmic process for the next 3 hours and never did I stop getting dirty blue patches after brushing. I always wipe my carbon cleaning rod after every pass, and I spray my brushes with electrical contact cleaner after each set of strokes so I don't contaminate the bore with dirty oil when I'm trying to get it clean. By the end of a total of 4 hours I had patches coming out just blue, no black fouling what so ever. I thought I knew how to clean a rifle but I have to say that I am now embarrassed! Are these brushes that much better than the nylon brushes, or is the blue that I see from the brush itself? I should mention that my process is as follows: 2 wet patches, 20 strokes with brush, 1 wet patch, 1 dry, 1 wet, let soak 5-10 minutes, then repeat. Can anyone offer advice as to what I should do? Should I just keep cleaning?