been looking into meat carrying packs recently after having to haul out 3 animals from a fairly close but very steep area. I can see now that also having 2-3 days gear plus meat will be a problem with my current set up, a bit of weight and some rough terrain really shows up the flaws.
The US guys have some pretty sweet (but a bit pricey) stuff for pack-outs and gear. Looks like the best design have the pack bag detachable from the frame so the heavy meat load can be held close and secure to the frame, then the bag bit straps over holding everything tight. vids have the guys hauling 70+kgs with no failures.... apart from thier legs!
nice all in one designs:
Hunting Packs | Mystery Ranch Backpacks
Packs | Product Categories | Exo Mountain Gear
Then the super customisable and on the "if I ever win Lotto" list
VIDEOS - Kifaru International
pretty cool to see some differnt takes on pack design/load carry systems