Don't just trust that your ability to hit something on a flat range is as difficult asa hunting situation. Try to do some 3D walkthrough's on hilly terrain with lots of shot angles. If you're a tree stand hunter, do a lot of practice out of it. A 30 yd shot down a steep hill is not the same shot as a 30yd flat range. Try getting your heart rate up by running up a hill then taking a shot (about the closest thing to simulating buck fever that you'll get). I'm lucky enough to have access to a great walk through range at my gun club.. I only use the flat range when doing initial sighting in.