Where I usually end up killing things the very last thing I want is a blown disc, a torn ACL or a broken ankle, so I don't pack my loads to the absolute max.
I am 6'2 240lbs and am in good shape for a 50 year old.
I find each of these to be a "load"
Backstraps, tenderloins neck & rib meat.=1
Shoulder, brisket, chuck meat.=2
Hind leg w/bone in.=2
Rack, cape, rifle or bow & optics.=1
That's six reasonable loads.
Loads that will allow you to cross deadfall, and negotiate the rugged, steep country that many trophy bulls call home.
Not maximums, but a load that will lessen the chance of a backcountry injury which can be devastating and possibly life threatening.