Almost everyone has their own view on how long they should let big game hang. Basically there are two things you have to think about. Number 1 if you let it hang for a longer time it will get a bit more tender, but you will also lose a lot more meat (due to the trimming that has to be done). But if you let it hang for a short time, it may not be as tender, but you get more meat. If the weather is cold outside I would recommend letting the game hang for no longer than two days, if the weather is warm out, than I would recommend cutting it the same day.