I have been having problems with loading primers in my .308 using fed, lc, and i think winchester brass. it shaves a little off the edges, sometimes disforms them a little, and just hard to seat. I have used federal 210 and cci bm2. but at the same time i have reloaded my .243 using the exact same setup using the cci's and works perfect. Loads just as smooth and easy as you could ask for. I figure its the brass but wut could be the problem? and yes I clean the primer seat good before I try and seat the primer. Thanks, Keith.