You need two. One for gear and the first load out, and then an external frame freight hauler for the meat on the way out.
Why can't you hunt with an external?
You can, but it gives up a bunch.
I prefer an internal that I use for both. My choice was a Kifaru pack a bit over a decade ago. I've day hunted, touristed Italy, and fit both a front & rear quarter of an elk in it. if I was in the market today I'd be looking at Kifaru, Mystery Ranch, Seeks, and Stone Glacier packs.
