I've seen several articles lately on the 260 Remington. Although I have no experience with it I thought I'd throw it in here for fun. Here is an example from Field & Stream:
What is your thought on the 260 rem for whitetail? Too small? I was thinking of purchasing one.
By WA Mtnhunter 20 Jul 2009 10:29 am
The .260 Remington should be every bit as good of a deer rifle as a .243, .257 Roberts, .25-06, 6.5x55 Swedish, or 7mm-08 with a good bullet. Jim Carmicheal speaks very highly of their results. I have no personal experience with the .260 Rem, but since it is similar to other rounds I have used, it should be great.
Deer & Deer Hunting had a recent article too