The Bill Bagwell Memorial Load for the .458 Winchester Magnum:

Lyman 457121 "Parker Hale" FN plain base cast in 50:50 WW/Pb is about .4565" diameter and 479.2 grains.

This can be sized down and paper-patched up for use with either duplexed GOEX FFg or smokeless,
both of which should make for some good clean fun with the SAAMI .458 WM at 3.340" maximum COL.

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.