Norma does same (CIP) MAP for both .458 WM and .458 Lott: 4300 bar or 62,365 psi. That is one set of shackles off the .458 Winchester Magnum, manacles off. I expect that they are both same construction in the head, for NORMA brass. COL restrictions = ankle chains. The .458 Winchester Magnum unchained is the .458 WM+: 62,500 psi and 3.600" COL, or even longer with some bullets, longer than can be done with a SAAMI .458 Lott.
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.
