moose...that's a premium 200 grain bullet.
I guess what I am getting at is most moose hunting I have seen is some good long range shots. I would rather have the flattness of a 180gr or even 165gr premium than the extra penetration of the 200gr when it comes to a 30-06.
If you shoot a Nosler 200-grain Accubond at a MV from 2700 FPS up to as much as 2800 FPS, (which some claim is possible from an '06), it will provide a BETTER long range load than either a 165 or 180 grain load! It retains velocity better, overtaking and eventually passing the 165 and 180 in retained speed, and is just as flat shooting, if not moreso, at ranges beyond 300 yards.