Though I've used various magnums, I've never found I needed them and over the years have drifted back to the "standard" cartridges I started with.
For backpacking, "light is right" and I doubt you can do better than the Kimber Montana for the price. Put a 6x36 (KISS) Leupold (I prefer dots in my scopes) on top in Talley Lwt Low mounts. Add a Butler Creek Mountain Sling and that's about all you need to know for a non-custom BP rifle.
I'm not a believer in the idea of "best" anything, but the Kimber works for me... and yeah, I've had more than a few.
