Re: What Brand Cermaic Media do you use?
Call me ignorant, but you should be cleaning your brass, before running into any die, this would include a size die that will punch out the old primer so there would be no way for the media to clean out the primer pocket?
The process that I have found works well (A little time consumming) is to take a primer pocket brush from RCBS, mount it in a drill press at about 920 RPM, and clean each pocket. It may take a little bit of time, I did 1000 .45 in about an hour this weekend, and I now know 100% that all the primer pockets are clean. If your worried about the inside of the brass, then you can use on of the other mrushes that RCBS has, and do the same process for the inside of the brass. There just are some things that the media is not going to get out of the brass.