500 feet, meant 167 yards, divide by three. I think that's right, getting old ya know. I know, a handgun, some enthusiasts make target sport of it but was just me being a little silly. A red dot sure does improve accuracy at distance though, makes it easier, holding still aside. I have one on a Ruger MK four .22 and it hits the plate at 100 yards resting on a bench. A .22 pistol. Open sights, me, never, not consistent at anything past 25 yards or there about. That red dot, lizards at fifty yards is a sure thing.