Note: A step missed on case prep, you must bell the end of the case to get the cast pill started. The universal belling tool sucks. Get one for each caliber. I have two, 45 and 30.
Fits everything. You can figure how to use one.
Two types, taper and roll.
Taper is what 90% of seating dies do. You use it on all jacketed projectiles. Mag fed rounds & cast need a harder crimp.
Roll is what you use for all cast. It holds the pill in place, and gives a consistent burn time.
Casters prefer to use the roll crimp die. Some calibers come with roll crimp dies. 45Colt, 357, and 45/70 depending on who’s dies you buy.
Most use universal crimp dies. I have them back up. But then I have lots as back up.