Ths new Badlands Scarifice hunting pack at just over 3 lbs is truly what we need in hunting packs. Congrats on that design.
On the other hand the very well designed Eberlestock Just One pack, for example, needs to go on a diet. At over 7 lbs. It is burdening the hunter with at least 3 extra pounds of too-heavy material. Lose some webbing width, get Dyneema fabric in many areas and go for lighter weight buckles as a starting point for this diet.
If you truly need fantastic durability from a hunting pack then go with the military versions of Eberlestock packs.