To my knowledge the Ruger version is not loaded to any higher pressure levels than the H&H version and in fact, because it has a slightly larger case capacity, it can be loaded to the same velocity as the H&H with lower pressure .

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.