This sighting-in technique involves adjusting a firearm’s sights so the projectile’s trajectory intersects the point of aim at both 50 and 100 yards. For example, a rifle sighted in this way would hit precisely where the sights are aligned at both distances. This is achieved because the bullet travels in an arc, rising above the line of sight after leaving the barrel and then descending to cross it again further downrange.
This specific zero offers several practical advantages for target shooting and hunting. It allows for accurate shots at two common distances without requiring sight adjustments. The relatively small difference in trajectory between the two ranges minimizes holdover or hold-under adjustments for targets between these points. Historically, this zero has been popular among hunters and recreational shooters due to its versatility and ease of use with common calibers.
