When hunting Alaska for Moose, we found that the average Moose required 11 man-trips to pack out, if that's any help.
IMO this post and that of Blueduck re number of man trips are the most practical replies to the original query.
Ditto to 11 man trips for a large Canadian moose. We did a smaller one in 9 man trips.
We've packed out many bull elk but I only have specific man trip numbers for two large Roosevelt bulls: One required 6 man trips and the other 4 1/2 heavy loads, all carried by strong young men in excellent shape.
The 4 1/2 pack load bull was this past Fall. He was 1000 vertical feet below the road, most of that elevation gain in a 450 yard stretch to get to a brushed in trail. The total pack was about 3/4 mile. The last three packs weighed 117, 109 and about 90 lbs. including rifle and remaining gear, carried out through brush laden with wet snow.
The 6 man-trip bull was huge, 2200 feet vertical below and about 3 miles from a road. Part of that was on a grown in road but most was without trails and everybody was exhausted. It was raining at the bottom and snowing up at the ridge road.
If the weather is cold you can take your time. Leapfrogging packs works well for me when packing meat solo.
