Let me give clear and concise answers to the questions you actually asked:

1. If you have found an adult bow that is adjustable down to 50 lbs, you do not need a youth bow.

2. A bow that is adjustable between 40 and 60 lbs should shoot right at 50 lbs. You may need to take it to an archery shop to have it tuned.

3. You do not need 60 lb draw weight to kill a deer. 50 lbs should be fine. Shot placement is the most important thing.


However, I will say that if you plan to be hunting in two weeks with a bow that you don't even own yet, you need to get the bow soon and start practicing A LOT between now and then.