So I was shooting tonight, and a neighbor was watching/talking to me while I shot. I shot a few at 20 and 30, shooting very well..... Backed up to 50, and dropped 3 right in the sweet spot. It was getting late, so I decided to try the sight light on a a shot at 50...... Completely missed the target left. I missed left over 12" left..... I'm not sure if I closed my left eye or not, but dang. That sucked. I moved up to 20 with the light on, closed my left eye, and was spot on.