I'm not sure, but i think that "battlesight zero" is at about 200 yards, so you should be good for the standing part. as for 300 - 600 yards, id get a rough estimate from a ballistic program on what you think the velocity is of your bullets, along with the weight and BC. If possible, id try out the measurements that you get at the different ranges and make sure there on and that your sights track well.