Just for fun, I have a little history on Shepherd scopes. The inventor (Dan Shepherd) lived a few miles from me, in waterloo, NE. I have an original somewhere in the basement. Back in the early 80's I purchased one of these scopes at a gun show and couldn't figure out how the dual reticle system worked. I called the number on the instructions and Dan invited me to his house on the edge of waterloo. I brought my M70 in 220 swift to him and he had a little 50 yard range in his backyard, where he coached me on how to set the scope up. I was a bit scared of firing such a loud rifle in the city limits of a town, but Dan said it was OK. Well, fired my swift several times to zero the scope according to Dan's instructions, and then put the rifle away in my car, still fearing a visit from the local police. We had a brief conversation, and I left for home. Dan passed away a fer years ago, and I really never found a use for the scope, but it was really quick to get a zero with the thing. I never knew the company was still in business.