These days, I have shelved the Alps Commander Z backpack (full frame.) it is too bulky and the frame does add weight. My hunts are one day hunts on public land about an hour from my house.
I have switched to the Eberlestock Just One J34 pack. It can collapse quite small but I have also bought the added kit and kaboodle for it. The super duffle, which could add enough space to make it a camping backpack. And you can remove the duffle and just wear the base which is also capable of carrying meat. I hunt whitetail deer and feral hog. This spring, I will also be hunting eastern spring turkey with my Mossberg 590A1 SPX and #4 upland shot (12 ga.) So, now, I have a 2 L hydration bladder and tube, which is more than enough water for me and I sip water constantly while hiking. In the rifle scabbard is my TC Compass II .308 Win with an Arken SH4 Gen 2 4-16X50mm scope.
A gambrel and a small 400 lb pulley system. Some 500 lb rope to hold the pulley. A few 50 foot logs of paracord. Outdoor Edge Wild Pak processing kit and some dressing gloves. Some 30 gallon trash bags for carrying meat. Orange ribbon for marking trails. A folding knife that clips to my pants pocket. A fixed blade with ivory handle because it is so pretty and sharp enough for surgery. Trigger Stick tripod. A little folding camp chair and a little foam pad to make that comfortable. A compass. 2 rolls of toilet paper because it is not a question of if, but of when.
In a chest rig, I have my Vortex Diamondback HD 12X50 binoculars. So much better than a scope for looking into the bushes and trees for movement. The rifle has a 5 round rotary mag. I bought two more from ebay. So, I carry 3 loaded mags.
The main difference where I hunt is opening rifle weekend (first weekend of November) and Thanksgiving weekend. At those times, you have to field dress the deer and then bring out the whole carcass, minus the guts and take it to a deer check station to get weighed and take bone samples for CWD. During those times, I also take along a deer sleigh'r. It is a toboggan you can drag out a deer with. Otherwise, at other times, I am going to at least quarter. But I might also de-bone. That being said, I have a cheeky idea to get two spikes with the spike being on opposing sides and then do them both on european mount and set side by side.