I have the Berger manual. They list a starting load of H4831SC of 48.5 gr for 2682 fps in a 26 inch barrel and a 54.3 gr max load giving 3022 fps, COAL 3.250", 94% full. This is listed as their favorite load for th 25-06 in the front writeup (using a Winchester WLR primer). Oddly, they don't list the primer used in the load tables.
Other loads listed:
Ramshot Magnum 53.5 gr/2778 fps 59.5 gr/3149 fps 100%
H1000 52.5 gr/2759 fps 58.5 gr/3121 fps 102%
H4350 46.5 gr/2787 fps 51.6gr/3088 fps 92%
I'd probably try the Magnum first as I've tested if for temp stability in my 338 RUM and it is very stable plus it gives the highest velocity of all powders listed.