The quartering-away shot is when your target is facing away from you, but at an angle. It’s an effective shot on deer, antelope, and similar-sized game. From that angle, a shot aimed at vital organs may miss the rib cage entirely. There’s also less tissue to pass through before penetrating vital organs.
Rifle hunters should use the chest area above the opposite front leg as the aiming point for a lung shot.
Bowhunters using cutting point broadheads for this type of shot are less likely to encounter heavy bone and thus increase their chances of hitting a vital organ.