I Zeroed the scope at 30 yards.
Hawke has and app you can download to you phone or computer that is pretty neat its called X - ACT. You can plug in your pellet weight, average velocity type of reticle, magnification setting and the program will tell you where to hold based on your zero and the other info. I used the program when I set my scope up and I was dead on. Took a lot of the trial and error out of figuring out the hold overs.