21st Century U.S. Army Field Manuals: Crew-Served Machine Guns, FM 3-22.68 (CD-ROM)
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This unique electronic book on CD-ROM has a complete reproduction of the U.S. Army Field Manual, Crew-Served Machine Guns, FM 3-22.68, 430 pages. In addition, as a bonus, there are reproductions of over 50 vital U.S. Army Field Manuals! This manual provides a single source of technical information, training techniques, guidance for using, and integration into combat operations of three crew-served machine guns, the 5.56-mm and 7.62-mm M60, M240B, and M249. For quick reference, this publication includes an appendix with all of the firing tables collocated. Trainers must ensure that everyone observes safety procedures at all times. Leaders, trainers, and Soldiers must remember: safety is everyone s full-time responsibility. They must conduct all training as though each weapon is fully loaded. In training, safety is always more important than speed or accuracy. This publication applies to the Active Army, the Army National Guard (ARNG)/Army National Guard of the United States (ARNGUS), and the U.S. Army Reserve (USAR) unless otherwise stated. M249 Machine Gun - The 5.56-mm M249 machine gun supports the Soldier in both the offense and defense. The M249 provides a medium volume of close and continuous fire. The Soldier needs this to accomplish the mission. The M249 lets units engage the enemy with controlled and accurate fire from individual weapons. The medium-range, close defensive, and final protective fires delivered by the M249 MG form an integral part of a unit s defensive fires. This chapter also describes the weapon and the types of ammunition in detail and provides a table of general data. Although this chapter discusses employment of the M249 in the machine gun role, Soldiers also use this weapon in the automatic rifle role. This section describes the M249 machine gun, its components, and their purposes. It also discusses the types of ammunition used, installation of the blank firing adapter, and care of the gun while using the blank firing adapter. DESCRIPTION AND DATA - The M249 machine gun is a gas-operated, air-cooled, belt- or magazine-fed, automatic weapon that fires from the open-bolt position. Its maximum rate of fire is 850 rounds per minute. Ammunition feeds into the weapon from a 200-round ammunition box containing a disintegrating, metallic, split-link belt. Only in emergencies do M249 gunners use a 20- or 30-round M16 rifle magazine, in part because this increases the chance of stoppages. The gunner can fire the versatile M249 machine gun from the shoulder, hip, or underarm; with a bipod; or with a tripod.
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