[kraigwy]

Measure your sight radius.

Divide that number by 3600 (number of inches per 100 yards).

The result is how much you need to add to the height of your front sight to move the impact 1 inch at 100 yards.

Multiply that by 7 and it will tell you how much higher your new front sight needs to be.

Example: I don't know your sight radius, so lets say its 18 inches.

Divide 18 by 3600 and you get .005.

.005 added to the height of your sight will move the impact 1 inch down at 100 yards.

Times 7 (you said you are 7 inches high) means your new front sight needs to be .035 higher then your current sight.

Like I said, I don't know your sight radius, measure it and use that number instead of the 18 inches I used.