Sir John,
Good load that one, since you are using the Norma brass that has gross water about 4 to 5 grains greater
than most .458 WM brass.
I SWAG your pressure is less than the SAAMI MAP of the .458 Lott, bless its heart.

I succumbed to the charms of a Ruger-Marlin 45-70 Govt yesterday.

I need another 45-70 like I need a hole in my head.

Still prepping .458 WinMag brass here ...

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.