Right , the easiest way for you to understand is do it yourself . If you can set a target out at 25yds it will be very helpful. So , your set at 25 yds , and you`ve zero`d your scope , so you hit the target ,centered at the cross hairs every time ( or near enough ) your ready . Then step closer , by 5 yds and with the cross hairs on the target , see where the pellet lands . It might not be the easiest answer your looking for , but it will help you understand . Once you know how far off your pellet is , you can estimate the `hold over / under` and aim higher or lower to compensate . If you mov