Sir Dennis,
Guardian of the Plains,
When on elephant & deer patrol, you are well served by the 480-gr FN at about 1800 fps.
That's overkill for deer and at that moderate velocity it might pass through an elephant if the alloy is hard enough.
Saint Elmer Keith approved of 400-gr FN at 1800 fps from a .45-70 Govt. for elk.
Saint Bill Bagwell approved of a 480-gr FN at 1300 fps from a .45-70 for bison.
Saint Finn Aagaard approved of a 500-gr FMJ solid at 2000 fps from a .458 WM for making bloody big holes through elephant.
Seems like your 480-grainer might be the happy middle ground,
about like Sir Bob's 465-grainer at 1900 fps in semi-hard alloy.

480-ish grainers of alloy hardness from 10 to 25 BHN and velocities from 1200 to 2200 fps will find great utility in the .458 WM,
from the softer and slower .459" grease-grooved to the harder and faster .461" PC-painted.
At 2200 fps, that is full Nitro Express equivalent.

Please do put an ear to the ground as our bison scout.


Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.