So pack liners and one less spare pair of socks? Weight helps you shoot better and this is 3oz. It didn’t go from “damn this is the perfect weight” to “this is unable to be carried and beyond my physical ability” in 3oz.
If 3oz of weight is what breaks your ability to carry your gear successfully on a hunt, whether it’s just a rifle, binos, and a knife, or a full multi day pack setup, I would argue that you have a mindset problem first, a training problem second, and a prioritization problem third.