A couple observations. This was never intended to be a "will a 243 kill a moose," thread, I'm confident it will. What I really intended was "which bullet should I choose for moose?". That said, I do appreciate all the people who chimed in with their experiences on moose, especially those that live in Alaska.
On the topic of bullet choice (which I think matters a lot more than caliber/cartridge), one thing I most likely won't use are copper monos. I got really tired of shooting deer through the lungs with barnes and watching them run 100, 200+ yards before tipping over. They seem to die much quicker and run less with cup and core match type bullets.
Current front runners for moose are:
Nosler 95gr ballistic tip (seems to be pretty universally lived by .243 fans)
Hornady 105 hpbt
Sierra 95 tmk (or 107gr, if I can get them before my hunt)
Maybe 95/100gr partitions
Maybe 115gr berger vld hunt (if they shoot well).
115 dtac/tmk (may not stabilize in my 1:8 twist near sea level).
Any I've missed?