I really like the fact that you quote the arrow weight and the fps.
If you were to ask "can I hunt elk with a 65# bow", folks would say yes, and if you said "can I hunt elk with a 45# bow", most would balk.
But, the first bow may not be as efficient as the second. My LC throws a 515 gr arrow at a consistent 182 fps. It's below 50 pounds draw weight. I feel confident, despite the fact that technically my LC is a 45# bow (at 28).
I of course defer to those of you with much more practical knowledge.