Originally Posted by dog3665
thanks for that . if I put in 1/20 mil from the drop down box it put's 5.8167 in the box and the clicks are the same as putting in 5.83 .
Yup 5.8167 is a more correct answer than mine. Mine was based on 3.43 mrads, but a more accurate figure is 3.437 which is what Chairgun uses. You wouldn't notice a difference between 5.816 clicks and 5.83 clicks though
Like Rob says though, Chairgun will give you a reasonable starting point, but you really need to chuck some lead down range at paper to check them.