Boresight (firearm)

Boresighting is a method of visually pre-aligning a firearm barrel's bore axis with the target, in order to more easily zero the gunsight (optical or iron sights). The process is usually performed on a rifle, and can be accomplished either with the naked eye, or with a specialized device called a boresighter.

This article is about the use of the term in firearms. For other uses, see Boresight (disambiguation).
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