Irrelevant. Lasers are straight line devices, while bullets do not move in a straight line.Dumb Newb question, how far do these lasers reach out so you can see it on a distant target?
I know we are talking for shotguns, but let's say a rifle or even longer shooting pistol use.
Light from a laser will travel several light years in distance, but the beam begins to spread by atmospheric dispersion almost immediately.