This concept refers to the practice of sighting in a firearm at a shorter distance to achieve a point of impact that coincides with the point of aim at a longer range. For instance, adjusting the sights to hit the center of a target at 25 yards might result in the projectile’s trajectory intersecting the line of sight again at 50 yards. This allows for effective aiming at both distances with minimal sight adjustment.
This technique offers significant practical advantages for shooters. It simplifies the zeroing process, particularly when longer ranges are unavailable or impractical for frequent practice. It leverages the ballistic arc of the projectile, allowing for a single sight setting to be effective across two common distances. Historically, this method has been employed by both military and civilian shooters to maximize efficiency and accuracy in diverse shooting scenarios.