What does "bore sighting" help to achieve?

Bore sighting is primarily a technique used to achieve the preliminary alignment of the sights before live firing. When a firearm is bore sighted, the sights are adjusted to line up accurately with the bore of the barrel. This allows the shooter to ensure that the point of aim through the sights is going to be aligned with the expected point of impact when the first shots are fired.

The process typically involves looking through the bore from the rear of the firearm and aligning the sights at a target or using a boresighter device if available. This initial step can save time and ammunition by reducing the number of adjustments needed during live firing. By confirming that the sights are aligned properly with the barrel, shooters can achieve a more precise zero for their firearm, resulting in improved accuracy during actual shooting sessions.