RE: 25-06 and 257 wby?
Twice the money for ammo and twice the punishment on the shoulder. I sold a 257 wby it does have a noticeable kick more than my 300win.
When I was younger I was always trying to get more out of a round than I could and so is the rest of the world. That's why the ultra mags are here today bigger and better they say. You don't need all that, one well placed shot is better than a hundred ultramags.
They only way I would say the 257wby would be any better would be less drop. Less hold and less guess work in the field. But with today's equipment aka rangefinders and knowledge of ballistic's with a lot of practice you might become a animal sniper.