A reticle is the crosshair or aiming point in the field of view of an optical sight. The Mark 5HD riflescope was selected as the optic for part of the U.S. Army’s Precision Sniper Rifle (PSR ...

Through the scopes of the world's most precise marksmen SNIPER: INSIDE THE CROSSHAIRS takes you on a journey to discover the science and psychology behind the most extreme shots in military history.