I had been using the wipe out brushless cleaner. Since using Hoppe's 9 I decided to use a brush. Anyway, I thought I had the barrels pretty clean now as they were coming out clean. I sprayed hoppes 9 on the brush then ran it through the barrel 5 or 6 times. Then I got a patch wet and ran it through the barrel. The first two or so were coming out really dirty. After 3 patches or so it started coming out clean again and appears clean. However, if I take the brush and run it through a few more times then put a patch through it the patch is pretty dirty again. Is the brush keep knocking more dirt loose? Do I keep doing this until it comes out clean even after brushing it or do I only brush it a few times then just run patches through until they come out clean? It just seems like after using the brush the patches are dirty afterwards no matter how many times I seem to be doing it. So do I keep doing it or do I just run the brush through and then run patches until they are clean then stop?