Actually, I think compressed loads of ball powders are more troublesome than with extruded powders. It is not too hard to get 2100 - 2150 fps with 500 gr bullets in the 458 Win Mag. My favorite powder is my old favorite, IMR-4895. It will make the requested 5000 ft-lbs.

To answer the original question, Hornady loads their "Heavy Magnum" 458 Win Mag ammo to equal the 458 Lott.