Re: 25-06 versus 257 weatherby
I went back in a box of old stuff and found that data. My memory was off on the numbers but the most important thing was I knew it was way outside the norm for this cartridge like your 25-06. It was 7828 powder. The accuracy load for the 200 grain speer hot core was 3226 fps with a note of a 5/8" group at 200 yards. The accuracy load for the 180 grain hornady spire point was 3378 fps. The note was just under 1 1/2 inch group at a quarter mile. Again this is out of a standard Ruger #1. I still have the rifle if anyone wants to see it shoot. Have had it since back in the 90's.
I have shot the 25-06, the 25-06 AI and the 25 Gibbs for years and they will not shoot with a 257 wby unless somebody happenned to find one like my way out of the norm 300 wby.
Predictions are difficult, especially when they involve the future