Originally Posted by Riflecrank
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 ...

The temptation of the lever guns is Strong.