I do have the element range finding module on my air rifle. I like to shoot ground squirrels at long distances. And using the range finding module. Once it is set up properly helps to eliminate errors by using a normal range finder.. Mine is set up on a parallel plane with the rifle scopes zeroed at 50 yd. So when I use the range finder my rifle scope is pulled back down to the 0 mark. And I put that at the base of the target and touch the button to get the read out.