The new Nosler reloading manual #9 shows their highest 250 grain load as 2643 fps using 58 gr W748

Strangely their top load with the 358 Norma was only 2628 fps with IMR 4350

I would guess they put a little more time and effort into working with the Whelen as they show its case had a water capacity of 78 grains vrs the Whelen's 62.2

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.