After this weekends shooting around I gathered everything together and decided to clean the .22 and the .17 HMR. The .22 I'm not really too concerned with it as I'll be replacing the barrel soon to a bull. (then I'll have my own issues with that being spotless) Back to the .17 HMR. I can run my brush down the pipe, patch to clean gunk, solvent patch, another clean patch etc. I repeat the process but everytime I get down to the brush It's like I never did any steps before. I only shot 50 rounds this weekend through it but it appears that I can never get it clean. I pull bolt out, and visually look DOWN the barrel. I see a perfect mirror shine, perfect rifling, but there's always crap in there. I know it's a rimfire and it's dirtier than a centerfire but am I obsessed with it getting too clean? I have OCD, well actually a little CDO because you have to put them in the right order. I remember as a kid cleaning my Marlin .22 and we would use patches, a brush and WD-40 and I could get it clean enough (or so I thought). Now that I have a little bit of dough invested in my own rifles... What is clean?