Thread: How do I set up and use a BRH (or BDC style) reticle?

Originally Posted by MB

A question. If you zero the main crosshair on a BDC reticle at 100 metres (or whatever), then measure how high the bullet impacts when using the lower marks at the same distance, can you then calculate the distance that corresponds to each mark?

Hope that makes sense

Yes, but that probably introduces greater error than simply using the calculator