I have used many primer pocket cleaners,Uniformers etc. but the best ,and easiest to use with consistancy is the Sinclair Pocket Uniformer.
http://www.sinclairintl.com/cgi-bin/...PUN&type=store try the power kit #8000 it comes with an adaptor for a power screw driver and both the large rifle and small rifle uniformers.I have cleaned thousands of primer pockets with this tool and 100's upon 100's at one sitting and its the easiest and most uniform pocket cleaner I have ever used!