Here is a list of my favorite powders for the .458 WinMag,
add to this Winchester STABALL MATCH with about same burn rate as Win 748 (#137)
which is on the slower side, close to CFE 223 in the list:

[Linked Image]

[Linked Image]

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.