Here's what Easton has to say about KE and hunting:

Easton’s recommendations for KE on specific size animals are listed in the chart below. It’s very interesting to note that throughout history many large animals have been cleanly harvested with less KE than advised in the chart. This is not to say, however, that you should purposefully ‘under-power’ yourself.

KE Hunting Usage
25 ft. lbs. Small Game
25-41 ft. lbs. Medium Game (deer, antelope, etc.)
42-65 ft. lbs. Large Game (elk, black bear, wild boar, etc.)
65 ft. lbs. Toughest Game (Cape Buffalo, Grizzly, etc.)

Hope this helps clear up your questions on draw weight. Be safe.
Shoot Straight
Derbytown