If it's not too late for my 2 cents, if a person LIVES in Elk country, he has the luxury of extended hunting/ scouting time and is more able to pick his shots, and thus be able to use a smaller caliber. An out of state hunter has a much more limited hunting/ scouting time and could more easily be faced with either a bad angle shot requiring more penetration from his bullet, or no shot at all. To me, a 7-08 (while I dearly love this all around caliber) is just not up to the task under those circumstances. While the 30-06 would marginally have the most punch, I would go with the 280 for no other reason than it's flat trajectory makes it a more versatile round, PLUS you can hunt different sized game without reloading OR even switching bullet weights, by simply using the bullet TYPE for the animal you're after...Ballistic Tips for deer and antelope...Partitions for Elk and Moose...again, just my 2 cents.