I have plenty of "back stop" that will stop the round before going anywhere harmful. I will never take a shot on a deer that is on top of a hill or where I'm aiming with sky as a background. Most times when I shoot the ground is the backstop because I'm up high or at least high enough to make the round venture down. My entrance and exit holes are 99% of the time in direct line of each other. If I'm shooting at a deer on a wood line, there are always enough trees that will "catch" the bullet if I miss or have a pass-through.
...I am not skilled to understand, what God has willed, what God has planned, I only know at His right hand, stands One who is my Savior....