Leupold man,
I would say the Redding UltraMag Press is the best on the market but I also like the RCBS mentioned by Crowmag.
The big Redding is price at +$200 but I feel it is the best for these big magnums.
THe lever design is over a much longer distance then any other press of this kind that I know of so it greatly reduces horizontal force on the ram which will reduce wear and delay looseness.
This also aids in a truer vertical ram movement so there is less chance for increased run outs using conventional dies.
With in-line dies, this is not a major concern as the dies control the run out, not the press.
Good Shooting!!
Kirby Allen(50)