OK I am working with a 300WSM and have my load worked up. I entered everything into the LoadBase 3.0 program to get my bullet drops. I printed one version with the 'Linear' information that tells me that at 500 yards with a 200 yard zero, the bullet will drop 34.7" The other way I did it was in the MOA mode. At 500 yards, it is telling me that it will drop 6.6 MOA. Now I realize that for all intensive purposes that a MOA can be assumed to be 1" at 100 yards, 2" @ 200 yards and so on. Now this is where I am getting a little confused. The scope I have a Leupold Vari-XII 4-12 AO. It was made around 1997-1998, so it doesn't have the 1/4" clicks. It uses the smooth rotating elevation and windage adjustments. It just says MOA on it, and as far as I can figure is scaled for 1/2 MOA. So my question is: To zero the scope in for a 500 yard shot, do I move the elevation about 6.5 marks to correspond the 6.6 MOAs, or do I move it about 35 marks for the 34.7 inches?