I like the 550 system, even more so on th e750. Different frame as there's a boss cast in to the frame for the 550 style primer style. IMO dillon decided to either sub, or buy out, 1 or 2 folks who have been doing 650 upgrades. There's some familiar looking stuff that i've seen offered with 3d printing.


I'm sure there's going to be some lower priced used 650's available. As for the original 650 priming system, never an issue with it, or changing out. Those few steps when done, allow me to do a pm and once over.