I think the rifle you are referring to is the 375 Scovill, aka 9.5x62, and although similar I think it's powder capacity may differ enough that the stiffer loads may be suspect.

Phil Shoemaker
Alaska Master Guide,
Alaska Hunter Ed Instructor
FAA Master pilot
www.grizzlyskinsofalaska.com

Anyone who claims the 30-06 is not effective has either not used one, or else is unwittingly commenting on their marksmanship.