I know what you mean. I have a love-hate relationship with the 6.5x55. I've owned four, and traded off every one of them. But I end up buying one again. All Tikkas, The only one that I regret selling was an M595. The wood and heft were fabulous. I guess the closest I'll get to it is a T3 Hunter.
I have the same relationship with 6.5 cartridges, I love them on paper, havne't found a package that I want to keep. Owned a full custom 260, a model 7 CDL in 260, a kimber open country in 6.5 creedmoore, a 6.5sweede milsurp rifle and a few others. My expectations always exceed the reality... mostly mental...
The only keeper so far has been a .264 winmag. It shoots better than I can. Even though it weight 2# more than all my other hunting rifles!
