I have a dillon 650 and a bullet feeder (open source TylerR). I have Lee 300 Blackout dies (3) FL size with expander ball, Bullet length seater, and factory crimp die. My problem is the bullet won't stay on the top of the case as I load, They fall off. I expect I need some
kind of mandrel die to open the necks a little more so the bullet will actually go in the neck. Which will also make me need a bullet seater and crimp combination die. Am I missing something else. Can anyone make a recommendation on which dies I need? Anybody here running a 650 dillon with a bullet feeder and 300BO?