Re: 7mm-08 or 30.06 for Moose?
30-06 and either 180 ttsx or 200 AB.
708 will work in a pinch but the 06 with the heavies is you're friend here.
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.