M115 Boresight: Details
The M115 Boresight is used to calibrate and match a specific mortar sight unit (M64/M67) and mortar/cannon system together. The body of the boresight contains 3 level vials used to determine that the angle of elevation and the “V-slides” are perpendicular. The boresight has three plungers that keep it secure in place when mounted in the muzzle of the barrel at a preset elevation.
The M115 Boresight is used with the M224 (60mm) Mortar.
|Field of View:||17°|
The M115 Boresight consists of the body, (2) lens assemblies, and (2) leveling bubbles (one for cross-leveling and one for elevation).
|M45 Optical Boresight||