May be too late to catch any further interest in this topic here, but I'll give 2 cents just in case, cause i'm just smitten with this cartridge:

Have been reloading the 25wssm for a couple seasons (browning ABolt varmint stalker) and have found it kills deer dead, real dead, like dead where they stand out to 350 yds (not comfortable as a rifleman shooting farther), but bullet selection is absolutely critical for that performance. Hornady 117 gr BTSP have been most lethal for me, and the factory Win. Accubond (110 gr. i think) have had them run up to 30 yds, and i can believe that the ballistic silvertips would have results commented on in this forum. Suffice to say I'm just not a fan of the ballistic silvertip. The Winchester Super X factory 115 gr? PSP I've had deer run up to 50 yds as well, but i'd recommend that as the best factory load available for this caliber.

The 25-06 does have a velocity advantage, maybe less than 200 fps even to the handloader. They are pretty darn close, but if you're splitting hairs, there is an advantage to the 06, ballistically.

The point is that the 25wssm is just a really fun cartridge to shoot and extremely lethal on deer sized and smaller game. I'd highly recommend this to any new/young shooter, or any old shooter looking for something different.