I take 2 pairs of boots. As long as it is not a pack in hunt, this works well. If I am going to be doing a lot of walking I take a pair of goretex, noninsulated boots and use a sock liner + wool sock. I also take a pair of 600gm thinsulate boots in case it turns colder and I will be sitting a lot.

Now, if I am going to be able to drive/ride a horse to the hunting area and not have to walk much, and I think it will be cold, I also take my Sorrel pack boots with removable wool liners (plus extra pair of liners). Even though they are only 4.5 lb per pair they do not do well if you have to walk any distance. Too much extra room in them and you are asking for blisters because you foot slides around. They are great on stand though!

Whatever boot you have, be sure and have a quality wicking thin sock liner to wear under your wool sock. Moisture transfer is the name of the game for keeping your feet warm. No matter how cold it is, if you move at all, your feet will sweat someone, and as stated, wet feet are cold feet regardless of how much insulation you have.