I would like to know if it has been proven that cleaning reloaded ammo after reloading has degraded the powder inside? I have read that it does but not to what extent. I have some .223 ammo that I loaded about 6 months ago and it is starting to tarnish the brass cause I didn't wipe my prints and oils off after reloading. I am wondering if I can still put them into the RCBS Vibrator with some Nu Finish polish/Corn Cob media and remove the tarnish? These reloads are for paper cutting and not for precise target shooting. If it does degrade the powder, then what happens to the powder as far as the degradation goes and power wise? Thanks to all who know the answer. I am still going to use them for target practice if they don't ignite inside the Vibrator.