Most deer that are shot with a bow are done so at 20 yards or less. The key to being consistently accurate at this distance is to practice at distances greater than 20 yards.
After you become proficient shooting at 20 and 30 yards it’s time to increase the distance to 40, 50 and even 60 yards. Are you ever going to shoot a deer at this distance? probably not, but by practicing at these longer distances it will become very easy for you to shoot the bulls-eye at 20 yards.
It’s amazing how much easier it is to shoot at hunting ranges once you are used to shooting at 40+ yards. Note: If you are hunting antelope or mullies on the prairies then you will need to adjust your practicing ranges accordingly.