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UYO-0005 1960s 50 caliber Spotter round M48

This item is listed for historical interest only. It is not for sale.
Item #20651

This round was used in conjunction with the M40 106mm Recoilless rifle, developed in the late 1950’s and 1960's. The standard load, the M48A1, is an observation/tracer. The gun that it is fired from is mounted co-axially to the 106mm weapon and is designed to have the same trajectory as the main weapon. The idea being that a successful strike by the .50 cal will mean a first round hit by the main weapon. Due to the huge back-blast from a recoilless rifle, their position is easily detected as soon as they fire. Using the spotter round enabled them to get on target with less chance of being detected. Normally, they would change position immediately after firing the main weapon. The 106mm recoilless rifles were mounted on small "wheelbarrow" type mounts, or on jeeps or on the M50 "Ontos" a lightly armored vehicle with three recoilless rifles on either side, four of them with the M8 spotting rifles attached.

 

The case is based on a shortened .50 BMG and uses a flash tube. The projectile includes the detonator, the observation charge and the trace compound. The tracer is held within a steel cup and is separated from the observation charge by lead. Note the aluminum liner separating the observation charge from the gilding metal jacket. The detonator is of simple design and is shock sensitive.

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