This document provides ballistic data for various 5.56mm ammunition loads out of barrels of different lengths, including zero ranges and velocities. It also includes ballistic charts for a 5.56 HUD DMR optic, showing elevation holds in mrads and moas at ranges from 100 to 1000 yards. The document describes features of the optic for automatically ranging targets, engaging targets using the same aiming point, and holding for wind at different ranges.