Excellent to get any tips on headstamping blanks.
Do you have your own bunter and press or some other method?

Near identical case capacity to 460 G&A is the .458 /.338 LM:

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My favorite load in the Thumper was RL-15 and 450-gr North Fork softs and solids at just over 2600 fps.
Uniform and accurate.
That was in a 22" barrel, 1:12" twist, throated like a .458 WM.

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.