First timer here. You asked for a JanSport here it is. Didn't get a harvest but handled 6 days of gear (~55lbs.) plenty well. Do I get bonus points or a deduction for the rainbow patches?
I'm new to the sport but had relative success using a JanSport mountaineering specific internal frame pack. 70L and built to handle weight. I'm sure a purpose built hunting pack would have done better, but I didn't suffer any significant discomfort or strap failures.