Welcome to the club. 50#'s is plenty to get a pass thru on a good broad sidded deer.wouldn't worry about that so much.With your arrows being 4560 and using a 100gr broad head you will do just fine out to 25-30 yrds. Being new to bow hunting if I were you I would keep my shots to 15-20 yrds, till you practice and get more comfy with your equiptment. There are alot of guys here that will give you great advice, then again there are also some nuckle heads who don't know the difference between an arrow and a 12 gauge. But thats just my opinion. Good luck and don't hesitate toask for help.