Smallarms Ammunition

3-1. General

3-2. Cartridges

Small-caliber ammunition, as used herein, describes a cartridge or families of cartridges intended for use in various types of hand-held or mounted weapons through 30 millimeter. Within a caliber designation, these weapons may include one or more of the following: rifles (except recoilless), carbines, pistols, revolvers, machineguns and shotguns. For purposes of this publication, smallarms ammunition may be grouped as cartridges intended primarily for combat or training purposes (API, HEI, tracer or ball); for training purposes only (blank or dummy); or for special purposes (rifle grenade or spotter-tracer). Refer to TM 9-1305-201-20&P, TM 9-1305-201-34&P, and TM 43-0001-27 for more detailed information on small arms ammunition.

In general, a small-arms cartridge is identified as an assembly of a cartridge case, primer, a quantity of propellant within the cartridge case, and a bullet or projectile. Blank and rifle grenade cartridges are sealed with paper closure disks in lieu of bullets. Dummy cartridges are composed of a cartridge case and a bullet. Some dummy cartridges contain insert granular materials to simulate the weight and balance of live cartridges. A typical cartridge and the terminology of its components are shown In figure 8-1.

a. Case. Although steel, aluminum, zinc and plastic materials have been used experimentally, brass, a composition of 70 percent copper and 80

•primer composition f

—PRIMER ASSEMBLY

igniter sub - igniter tracer composition

\TRACER /ASSEMBLY

•primer composition f

—PRIMER ASSEMBLY

igniter sub - igniter tracer composition

\TRACER /ASSEMBLY

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