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it is easier to aim a couple of inches low at a hundred ,than 4 inches high at 200m. your boon and crocket retical is set up for inches yards and minute of angle so it would help to use those...

As vietnamcam said,for hunting a 200 yard zero is more practical as you can just up and shoot at an animal out to 300m. with a 100 yard zero you will have to think about holdover for every distance. ...