We will get it sorted out. It could be mechanical or it could be a couple clicks off. By the way, it may change for each of you positions. The rifle that I was shooting Saturday has a no wind zero of 3 right (of mechanical) for standing; 0 for sitting; and 1 right for both 300 and 600. Depending how much cant you have in your position, it may fluctuate more or less in each position. You just need to test it. I would make my mechanical zero to be what the gun is sighted in at for 200 yards from the prone or sitting position.
Dan
Dan