Spotting rifle

[citation needed] The British BAT series of 120 mm anti-tank recoilless rifles used a variety of sighting systems.

The MoBAT, a lightweight and more portable version, had a 7.62×51mm NATO Bren light machine gun.

The Ontos used six barrels with four spotting rifles; two without, to avoid making an already tall vehicle even higher.

[citation needed] Perhaps the smallest weapons to use spotting rifles are man-portable shoulder-launched rocket launchers.

[1] This same spotting rifle (Mk 8 Mod 0) and round was later adopted for the US 83 mm Shoulder-launched Multipurpose Assault Weapon (SMAW).

This was a short-lived use, from the period in the 1950s when the increasingly powerful tank guns (and their reduced capacity for spare ammunition) encouraged a more carefully ranged first shot in the hope of an immediate kill, and the later development of laser rangefinders.

it is a development of the standard British L8 Tk MG, used on a number of AFVs and Artillery Pieces.

This bearing, rather than mounting by the receiver as for the L8, gives a more consistent point of impact between a cold and hot barrel, which is important for use when ranging.