Sharps,
The LEE sizing dies fit a loading press and the bullet is pushed through with the ram, it is similar to a "ring sizing die". This is altogether a useful piece of equipment.I don't have one, but a couple of my friends do. I still use an old Lyman and a STAR. The STAR is easy to make dies for, especially if you don't need the lube holes( pan lubing or paperpatching).The Lyman and RCBS are harder, because the plug inside the die has to be really close fitting. That reminds me, paperpatching is a valid way to make bullets when you don't have a large enough mold.
Mike