mete,
+1 to the 6.5x55. It's good stuff too! I don't own one, but when I'm rich all my woodland WT will fall to a 1952 M-S in 6.5.
Rich,
Nope, not my "just one gun" choice either. For that I'd take an '06 for Stateside use, or a .375 for globetrotting. There's other options, but that's what I'd take.
Art,
You are very, VERY right. Especially if my wife asks. As in: "Why, Honey, there just ain't no such thing as THE perfect answer...". "That's how come I need another rifle!"
TooTall,
No, I have not done it, but my 722 has. Four times that I know of. All before I was old enough to shoot (very young in my family). It would not be on my list as a first string elk rifle. If a recoil sensitive shooter is hunting elk on a regular basis I would go with the .308,
7-08, 7mm mauser, 8mm mauser or something like that. That new
.338 Federal looks good for that, too.