Lessee if this is legible, H. E. MacFARLAND's wildcat is featured, bless his heart:

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Karl Bosselmann concluded that he needed a faster twist than 1:14" for the 220-gr.308/.458 sabot load from his Ruger No. 1 .458 WinMag.
Since it is easy to do +3000 fps with a 250-gr monometal GMX bullet in a .458 WinMag,
maybe the 250-gr.358/.458 sabot load could work in a 1:14" twist .458 WinMag.
I also have a 1:10" twist.
Maybe AA-5744 full-case load, or good ol' H4198, either one might work, both so good with the GMX 250-grainer.
April Fool's day is coming and maybe I will have shooting range access by then.

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.