I am a newbie and I am very confused after going to the Maryland AR15 Shooter Site. They have a link that describes how to zero in a telescopic site equipped with a BDC (bullet drop compensator). The article writer is using a Leaper 4x20 scope, my rifle has the similar 3-9 X 28 Leapers sight, so the procedures are applicable. Heres why I am totally confused:
The instructions are to set a target at 25 yards, and then set the BDC for "4", which is 400 yards. Why???? My scope has 6 position, from zero to 5, corresponding to the distance to target in 100 x yards. Why would I set it to 400 yards when the target is only 25 yards away?
The instruction go on to say to then set another target at 100 yards, and the BDC to "1", which is 100 yards. Now this part makes sense, a "1" setting for 100 yards, yes no prob. I see that.
But why in the heck am I to set the BDC for 400 yards when shooting a target 25 yards away???
Okay where am I going wrong here?