I have a Frankford Arsenal perfect seat priming tool. I like the tool and it seemed to do a good job, but I'm getting a quarter moon raised area on the edge of the primers. I'm using Norma new and fired brass, CCI 450 primers, seating .0035 deep. Some of the measurements I'm getting are....primer pocket depth .124, primer height .118-.119. I contacted Frankford Arsenal last week, and they were great. Sent me new seating stems and collars/guides for large and small primers. But it's the same thing all over again....BUT, the large primer set up doesn't affect the primers.....? Thanks for any advice or help...I have contacted the company again, and to make it clear, they have been excellent on the help and customer service they have given.....rsbhunter