i have found it is easier to learn hold over for long distance shots. Sight in at 200, put a target at 400 and shoot it like 200. measure your drop, and mark your impacts with duct tape horizontally then go back to 400 and see what it looks like in your scope, ie. where it might set on your reticle, maybe on a mil dot or where the duplex meets on the crosshair, repeat for 300, 500 etc. right it down or make a cheat sheet. I have found mpbr to be good in theory, but a 75 yard pd you are holding really low, I like crosshairs on hair.
