I'd check out Kifaru. The Siwash might be a good choice for you in a smaller pack depending on the bulk (as opposed to weight) of your gear. All of their packs are designed to haul hefty amounts of meat. They aren't ultralight but then again, ultralight packs aren't designed for carrying as much weight. Always a compromise. The Gun Bearer works well for me for carrying the gun. I have the Guide pack and find it to be a great all around hunting pack. It will definitely haul a big load and bulky winter gear.