There have been several posts asking how much to raise or lower a front sight to move the point of impact a given amount at the target.
Re-reading some articles in the Feb 2006 American Rifleman I came across mention of an old formula I had forgotten about which may be of some help.
Sight height change can be figured by:
Sight radius in inches divided by the range in inches times the error at the target in inches.
Simple, and over the years has proven to work for me.
Mike