boresight

A term used to describe crude adjustments made to an optical firearm sight, or iron sights, to align the firearm barrel and sights. This method is usually used to pre-align the sights, which makes zeroing (zero drop at XX distance) much faster.
Found on http://en.wikipedia.org/wiki/Glossary_of_firearms_terms

Boresight

[firearm] Boresight is the adjustments made to an optical firearm sight or iron sights, to align the firearm barrel and sights. This method is usually used to pre-align the sights, which makes zeroing (zero drop at XX distance) much faster. A device called a bore sighter or collimator is used to accomplish this. It consists of an optical he...
Found on http://en.wikipedia.org/wiki/Boresight_(firearm)

boresight

the point of intersection, defined by its geographical coordinates, of the beam axis of the transmitting antenna of a broadcasting satellite and the surface of the Earth
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=725-13-07
No exact match found