The .460 is an amazingly accurate cartridge. Half inch groups are common and I shot many 5 shot groups under .7 MOA. An easy load that always delivered half MOS was 115gn of IMR 4064 or Varget for a velocity right on 2500fps.
The most powerful load I used on buffalo consumed the 550gn Woodleigh Weldcore over 121 grains of IMR 4831 for a velocity of 2509fps generating 7690FPE. This load shot just on an inch in my rifle.
The most powerful load worked up used the 600 grain Barnes RN over 116gn of IMR 4350 for 2460fps which generates 8064 FPE.
A terrific load used the 500gn Swift A-Frame over 123gn IMR 4350 for 2678fps and 7964FPE though I settled on 1 grain less for better accuracy.
Naturally, you can tailor loads to your own recoil preference or replicate the .458 and Lott versions if you wish.
John
