I have only shot bison from the rear tire of a jd7210, single pack trip. I would grumble a great deal if packing a whole bison out very far.
My niece shot her first elk last fall. We quartered and brought it out in 4 trips. She carried a lot of it.
She is maybe a buck and quarter with the pack and elk on.
Mile and a half in with a large ridge between kill and truck.
She was pretty thrilled.