Thread: Help- B&C reticle

Hey team.
I am trying out a leupy scope with a B&C reticle at the moment. What i want to clarify is about using the reticle for at range. It says it is designed to be zeroed @ 200yards but i was wondering if i zeroed it at 100 yards would the drop chart work the same? Eg zero at 100 then top of the post works out to be 400yds as opposed to 500 if you zero at 200yds. Assume has to be worked out in metres not yards either.
Regards