RE: elk hunting
I was thinking, how big is the average elk.
Since you didn't post this in the archery forums.
If so, a calf will go 300 - 500 lbs. A cow or spike will go 500 - 800. And a large bull can go just over 1000 pounds! These are rough figures but in the ball park, and "on the hoof". As with any animal, you will loose about 40 - 60% in guts, bone, hide, etc.
It's like taking down a horse! You pack one out one quarter at a time. Or if you're in far enough, just take a knife and fork!