Dillon 650 with a blackout trim die and trimmer is the way to go. Converts 223 into blackouts in one pull. I did the harbor freight saw, squirrel daddy jig, trim, way for awhile then went all in and bought the die and trimmer. Much easier on you if you're doing a large amount. I've only run 110 and 125 grain projectiles and I love using winchester w296
(Hodgdon h110 same thing).