Being new to xbows.... but hunting most of my life, I just have a couple thoughts on this. 1st being deer are live animals and do have the tendency to move just about the time you shoot. 2nd with any archery weapon there is way more that can go wrong while shooting... may it be a twig or the wind. My xbow will shoot pretty darn fast, and it does have the ability to take a deer at this distance. However Ifeel we owe it to the animal we are hunting to harvest it clean and quick! I do shoot my x bow and compound out to 50 and sometimes to 60 yards but would never try a shot that long.... This might be 3 cents worth!!