[MARINE1]

How about this. 1 Get some target knobs for the windage and elevation ajustments from a place like the blue press. 2. keep a log book of how each type of round strikes the target. Do this for different ranges. One thing to remember is to count how many clicks both up and to the right or left you have to move your sight. This is a simple way of keeping track of how each type fires thrue your rifle. The Marine corp snipers have been doing this for quite a while. They almost always get a one shot, one kill solution out of this system. Because they know how many clicks to go to get on target at any range.