My Dies are RCBS, and I've found that if you adjust the seating/crimp die properly, you will get a properly seated bullet, and the case makes just enough contact with the crimp thingy* to remove the bell, and nothing more. Incidentally, for all my .50 brass(Starline), I put a full roll crimp on them the first time they were fired in order to aid the fire-forming. After that, all I do is neck-size.
For case lube, the best results I've had were with the sticky Lyman case lube, and the ol' ink pad.
Tip for the cheapskates like me: I neck size with my standard full-length sizing die, it's all a matter of adjustment.