Only difference in my opinion is reloading cost and ease of developing reduced recoil loads (powder selection).
(If you buy one of these I can't see shooting reduced recoil loads, should of bought a lighter caliber.)
Don't really consider that an advantage. The recoil is different than the 500 and less taxing over the course of several hours of shooting.
I have plenty of both but prefer the 460S&W.
Shoot'em if you got'em.