.348 WCF Accurate Molds moulds designed for the .348 WCF:

250-grainer most popular, 1.04" long without GC, might be stable in 1:12" twist at 860 fps MV or faster, lead bullet

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300-grainer, 1.25" long without GC, might be stable in 1:12" twist at 1250 fps MV or faster, lead bullet

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All I have for those is a midget Browning M71 with 20" barrel, never been shot:

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SAAMI twist is 1:12", one reason the .348 WCF is such a good killer with jacketed bullets.
Might work OK with the heavier and slower hardcast FNGC.

I definitely need a peep for the safe queen.

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http://www.skinnersights.com/winchester_26.html

Neck the .348 WCF up to .458 and blow it out and shorten it a trifle (from 2.255" to 2.145") to make the .450 Alaskan: Same gross case capacity as a .458 WM.
Amazing. Tempting, but short COL is required to work through the M71 even if it had a .458 WinMag throat.
So I better not rebarrel, with so many fabulous bolt action .458 WM rifles about.





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.