Quote:
Originally Posted by CNP
BDC reticle. Canted just like your 90 degree illustration. The crosshair is zeroed at 200. Hits bullseyes at 200. Switch to the 600 yard subtension and fire. You will hit low and I don't know how far off horizontally to the left but it will be significant. You can reduce these deviations to absolute zero by making sure the rifle is level and the scope is mounted level. You're example of the path of the bullet through the bore intersecting with point of aim through the scope does not happen. Intersection only happens vertically. Your insignificant measurement now becomes significant.
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Spin your RZ600 straight up and down and mount it on the side of a rifle. Assume you are 2" from bore to center of crosshairs and zero at 200. At 400 yards you are only 4" off. Now you are seeing some difference but these are probably mounted on a 303 or 30-30 and you are only shooting 200 yards max and your animal is dead as you are bang on. Shoot the animal at 100 yards and you are 1" off and animal is dead.