Back to basic .458 WM loads with 350-gr Speer "tough enough" bullet as previously suggested,
power enough for anything in NA:

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And the good-for-lower-velocity loads with the 400-gr Speer, more suitable for .45-70 Gov't.:

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400-gr Woodleigh at +2600 fps MV (3.425" COL)
400-ish-gr/.461" Hardcast-GC at 2150 fps MV
375-gr/.461" Linotype Hollow Base at 1400 fps MV
The cast bullets are loaded to 3.340" COL, easily seated deeper for same velocities with those:

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All have good accuracy in a SAAMI-chambered .458 WinMag rifle with 1:14" twist.


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.