RE: 25-06 or 6.5x55?
I don't have any experience with the 25-06, but it certainly has a faithful following.
I do have experience with the 6.5 X 55, and I find it to be have a truly WIDE range of applications. I'm not sure how much it trails the 25-06 in terms of flat shooting, but it isn't bad all by itself.
I do know that it has won more than a few long range competitions.
Halcon, that Model 70 fw in 6.5 X 55 must be a dandy. I'd love to have that set-up or maybe even a 7 X 57.