i bought the dillon 600 swager about 6 years ago, i used it for about 100 cases just for testing a new load, then tried to prime them, some primers fell out after seating. thats when i reread the instructions that you have to seperate brass by stamp, so back in the box it went and sent to the shelf of denial. got the rcbs press swager and havent looked back. i just found it last week transfering stuff from my old multiple benches to my new monster bench