Hoser,
Although the notion of hunting with a tac-style rifle is neat and highly acceptable with guys on this forum, the fact is that there are some things that you have to put up with. A friend recently carried one on an elk hunt for a week, in fairly heavy bush and lots of hiking. His rifle is about 14 lb. and carrying that weight is the most memorable aspect of his hunt. Will he do it again, maybe, but it was not the optimum rifle for the job.
I have hunted with a 12 lb. rifle and it also is not really that pleasant to carry, when you think that an 8 pounder would pretty much do the same job. If your hunts involve a lot of hiking and any kind of bush, the lighter and more portable the better.
I believe that most of the long range shots discussed here are shot from locations that more or less involve getting the rifle to a spot and waiting for a shot.
Not trying to disuade you from that rifle, just pointing out that such a rig tends to be pretty heavy for some hunting applications.
The .308 vs .30-06 controversy will never be resolved, they are both very good rounds out to 800 - 1000 yards, have proved themselves and there is lots of data for both.