Just my $.02
Look at the mountaineering packs if you are looking at a bag for longer backpack trips. I can't speak to the Barneys or any of the other hunting"specific" packs, I have an Arctyrex Bora 80. Check out these packs if you get a chance, they make a 95 litre now. It seems to me that all the hunting packs have a fairly consistent $200-$300 surcharge "hunting" packs.