I find the 7-08 vs 260 comparison interesting. The 260 140 grain Berger has a BC of .615. You have to go to a 168 grain in 7-08 to better that (.617). Given equal pressures, the 260/140 gives about 100 fps more out of equal barrels. Hardly a big advantage, but it seems that hitting over long distances gives the 260 a slight advantage. Considering recoil, a larger advantage. Thus the reason you see the 260 in competition and not the 7-08. The 260 is a pet of mine, but it seems that apples-to-apples, the 260 gives more for less. In addition, no animal that I would shoot with a 7-08 on purpose, could not be taken cleanly with a 260.
Anybody want to argue?