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US Projectile, 155mm Chemical, M122 (T179)

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1847-339

Description

The projectile is a hollow, deep-cavity steel shell containing essentially a supplementary explosive charge, a burster, and GB agent. The Burster (M71) is a thin metal cylinder filled with Composition B explosive. The remainder of the interior space of the projectile is filled with liquified GB agent. The neck of the burster tube seals the agent cavity. The nose of the steel projectile is closed with a threaded adapter to seal in the burster tube and supplementary TNT charge (0.3 lbs.), and also to provide a fuze receptacle. For shipment and handling, an adapter type lifting plug is installed in the fuze cavity. A point detonating (PD) or proximity fuze is installed before loading the weapon. When a proximity fuze is used, the supplementary charge is removed. A rotating band encircles the projectile near the base and is protected by a grommet during shipment and handling.

Functioning

No information about functioning.

Hazardous Components

No information about hazardous components.

See Also

PD, M557

Source(s)

Old Chemical Weapons and Related Materiel Reference Guide (2018)

Old Chemical Weapons Reference Guide (1998)