Video of a friend in TN testing a Magneto Flash target at 800 yards. The target is at the right end of the far target line. Four straight hits. Fifth shot is a miss. No flash. Best viewed in full screen.
https://www.youtube.com/watch?v=G4Va7j8QA9Y&feature=youtu.be
https://www.youtube.com/watch?v=G4Va7j8QA9Y&feature=youtu.be