I am presently working on the zero on a 22-250. I have it at the top of the X in the bullseye at 50 yards with three rounds that can be covered by a dime that cut off the left top of the X. Now out to 100. Should I just adjust the scope reticle up before firing a shot group? If so, where do I want the crosshairs to be at 100 yards? I anticipate shots at coyotes at 200 or better. I have never been much of a rifle and scope guy as many can tell by my question.