I bought the Dillon 600 super swager. I am wondering if it is possible to over swage the primer pocket with this tool. I have had a few primers fall out of the pocket about 5 of the 1500 or so I did. I also noticed when seating the primers they felt easier to seat than the pistol primers I have used. I have been using Rem 7.5 primers in 223 cases. The cases that the primers fell out of were all different head stamps also.