I was wondering how you zero a target that is between the default zeroing ranges. For example, you can zero to 500m with an AS50, but what if your target is 550m away? How do you figure out how many mil dots you need to adjust for that extra fifty meters? I have been searching around but have found no answers. I have also tried to calculate it using MOA, but I have not hit pay dirt yet. Does anyone know how to do this? Thanks.