bore sight

See also: boresight

English

Noun

bore sight (plural bore sights)

  1. (firearms) An optical device, mounted on or near the end of a firearm's barrel, used to align the sights with the bore.
  2. (firearms) A dummy cartridge containing a small battery-operated laser, used to align the sights.

Verb

bore sight (third-person singular simple present bore sights, present participle bore sighting, simple past and past participle bore sighted)

  1. (firearms) To align the sights and aiming point of a firearm using a bore sight optical tool.

Usage notes
  • Bore sighting is similar to, but not as accurate as, zeroing, which normally involves adjustments made to a sight after firing at a target.
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