Greetings Ned,
Exactly right. My scope is fixed power so I am going to use the multi dot reticle instead and have calculated how far away 400mm is between the various dots. Bear in mind this is just to let me know when I should use the rangefinder or when I don't need it. I am sure that I remember a system such as you suggest being touted on some scopes a decade or three back. I can use my fixed power mil dot scopes the same way. I used to do stadia level surveys where you set up your level and have your assistant place the staff on points of interest. You then read top wire, middle wire and bottom wire in the level plus the bearing. The distance from the top wire to the bottom wire times 100 was the distance from the level which together with the bearing allowed you to plot the survey without faffing around with a tape. Now that is all done with electronics.
Regards Grandpamac.
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