To zero a scope or irons on a single barrel rifle, the drill is to fire a group on a target, at usually 100 yds, find the center of that group, and adjust his windage to the center of the group, from the origenal POA. His windage is set at this point. He then makes an adjustment "UP" so that his down range zero is on sights, or cross hair for the distance he wants his rifle zeroed. and checks it at that range to make sure it is hitting where he wants at that range, say 250Yds, he's through!

With a double rifle he was all out of whack from the start with this method, and the rifle set up that way will confirm most folks possition that a double rifle cannot be relied on to hit anything past the end of the barrels! That is not the rifle's fault, it is the fault of the guy who is loading the ammo, and the method he is useing the zero the rifle!

The "ZEROING" of the sights, be they glass, or iron, on a double rifle, starts at the loading bench! The number one thing is to find a "PROPER LOAD" that shoots "PROPERLY" to the regulation built into the rifle. The single barrel rifleman wants to get all bullets from both barrels to shoot into one ragged hole, and this is a mistake of monumental proportions, because you are dealing with two groups, not one! This is the point where idea comes form that a double rifle is regulated for only one distance, which couldn't be farther from the truth!

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