I'd have to agree, obviously a LOT more practice is needed. The deer were obviously NOT hit anywhere near the lungs which is a very respectable sized targets. Don't try to shoot beyond your own personal abilities. A fatally hit deer should not cover more than 100 to 150 yards before atleast bedding once. The 500 yards is waaaayyyyy to far for a lethal hit and a recovered animals unless it was a liver hit animal that is being pushed. Be careful and practice, practice, practice! Good luck and good shootin' next time.