Wow! That's interesting. Any thoughts on why there's a difference between the two scopes? How close have you found the Spot On ballistics program to be vs. at the range?There is a difference in what the circles represent given the same load but the info is used the same. The muzzleloader scope has 5 inches of eye relief but less field of view, the rifle scope has 3.6 inches and more field of view, just depends on what you what. I take eye relief over field of view, but thats what I want, my targets at the range and in the field are static before I shoot so having a little more view doesn't matter to me. The scopes are close to being the same but there are some size and spec. differences.