Ya know, I have had a 25-06 for 30 years and it's a great shooter. But recently I picked up a Remmy 721 rebarreled in 6.5x55, unfortunately I have not had time to test it out. Here are my limited thoughts on this caliber. It's been around for..... oh, let's see, a dang long time and from what I've read, it's a very versatile round not to mention extremely accurate. It has a very loyal following to those that have chosen it and one of the most used calibers in the European countries.
I like it as it has a wider variety of bullet bullets than the 25-06, however, the 25-06 has stopped everything I've shot with it, only needing one round to accomplish the task. The 6.5 will launch a heavier bullet , so in the wind it may be a better performer, but it has some big shoes to fill up against the 25. I'll never part with my 25 M77 Varmint rig, it's my baby, The 6.5 is interesting to me and I hope to get around to shooting it soon.
All in all, I know that is not much help, but I'm lonely and I needed something to talk about /ubbthreads/images/graemlins/confused1.gif /ubbthreads/images/graemlins/laugh.gif /ubbthreads/images/graemlins/grinning-smiley-006.gif