I own three Lee Presses, two RCBS, and one Lyman. The Lee presses see 80% more use than the other ones. The Lyman is used for pulling bullets. One of the RCBS is used to for priming. The other one is lying in a box under the loading bench. All resizing and bullet seating is done with the Lee presses. The Lee presses will work with my .338/378 Weatherby cases the RCBS won't. The Lees seem to work smoother to me.