What does the term "windage" refer to in optics?

The term "windage" in optics specifically refers to the horizontal adjustment of a sighting device, such as a rifle scope. This adjustment allows the shooter to compensate for wind drift that can affect the bullet's trajectory as it travels towards the target. By altering the windage setting, you adjust the point of impact laterally (left or right) to ensure a more accurate shot under various wind conditions.

Understanding windage is crucial for shooters because even light winds can significantly impact accuracy, especially over longer distances. This concept is integral to ensuring that the line of sight aligns correctly with the intended point of impact, allowing for better precision when aiming at a target.