What does "zeroing" a firearm mean?

Zeroing a firearm specifically refers to the process of adjusting the firearm's sights or optics so that the point of aim matches the point of impact at a specific distance. This is crucial for ensuring that when a shooter aims at a target, the bullet will hit where they are aiming. The adjustment involves fine-tuning the sights to account for factors such as distance, bullet drop, and wind drift, which can all affect accuracy. By zeroing the firearm, a shooter ensures that their aim is consistent and reliable, which is essential for effective shooting, whether for sport, hunting, or self-defense.

The other options do not accurately describe the zeroing process. Measuring the weight of the firearm does not influence aiming or accuracy; aligning the firearm for aimed shooting is a different aspect of shooting technique; and cleansing and maintaining the firearm focuses on the upkeep rather than the accuracy of shots fired.