Shooting Uphill and Downhill

When I shoot an NFAA field course I shoot at the top of the bullseye on long uphill shots. Shooting down hill I favor the bottom of the bullseye. I never aim out of the bull even on very long [80 yard] shots. This shows me that 80 yards is 80 yards and 20 or 30 yards is still 20 or 30 yards flat, uphill or down hill. The pull of gravity is still pulling the arrow down from the bow to the target at an even drop over the same distance. 

I don't know if my way of aiming is by the book but it works for me. The bullseye on NFAA targets is very small compared to the kill area of most big game. I aim center of body and behind the shoulder on all big game, in all types of terrain. 

Do a horizontal straight line shot at the same distance -- up hill, down hill and shooting on flat terrain -- and see what your own results are. By aiming at a horizontal line only, you concentrate on the up and down and not the right and left. Shoot several arrows. See how your arrows group. This will give you your answer.

Good hunting, Fred