1:10" twist is a special purpose twist for the .458 WM. My plan is for subsonic loads with common low-BC bullets of any weight up to 600 grains, suppressed, and supersonic loads with some VLD bullets of any weight short enough in length to stabilize. That is to be determined, 575-grainers for sure, heavier maybe.
1:10" twist is not meant for use with cast bullets. The standard 1:14" twist is good for that with hardcast sized to .461" using smokeless powders. Slower twist (1:18" to 1:20") might be better for softer alloys and paper-patched with BP in the .458 WinMag, and 1:14" is passing good there too.
A chicken in every pot and a .458 WinMag (or a dozen) in every gun safe is what I say.
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.
