Chapter Introduction

Section 1. GENERAL

I. Purpose and Scop«

а. This manual is a guide for training on the Browning- machinegun caliber .80. Instructors will find that this manual, together with the appropriate Army (MOS) Subject Schedule, Army Training Program 7-18r and Field Manual 23-67, provides a sound and detailed basis for training with this weapon. This manual and the referenced publications provide for the utilization of concurrent training stations in presenting subjects and recommend those subjects which should be taught concurrently. Range facilities, time allocations, and concurrent training stations are based upon a 200-man unit Units training substantially larger or smaller numbers of personnel should modify their training plans accordingly. Information is presented in a logical sequence from the basic to the more complex phases of instruction.

б. The material contained in this manual is applicable to both nuclear and nonnuclear warfare.

e. Users of this manual are encouraged to submit recommended changes or comments to improve the manual. Comments should be keyed to the specific page, paragraph, and line of the text in which the change is recommended. Reasons should be provided for each comment to insure understanding and complete evaluation. Comments should be forwarded direct to the Commandant, United States Army Infantry School, Fort Benning, Ga.

2. Roles of the Machinegun

The machinegun supports the rifleman in both the attack and the defense. It is capable of engaging distant targets with a heavy volume of controlled and accurate Are that is beyond the capabilities of individual weapons. It provides the rifleman with the heavy volume of close and continuous Are he needs to accomplish his mission in the attack. Moreover, the long-range, close defensive, and final protective fires delivered by this weapon form an integral part of a unit's defensive fires.

Section II. DESCRIPTIONS

3» Browning Machinegun, Caliber .30, M1919A6

а. General. The caliber .30 M1919A6 machinegun is an air-cooled, belt-fed, recoil-operated (with gas assistance) automatic weapon (fig. 1). Ammunition is fed into the gun by means of a disintegrating metallic link belt.

(I) The front sight assembly (fig. 2) con-sits of a front sight blade, adjusting nut, clamping screw, front sight post, bracket body, and a plunger mecha nism. The front sight post pivots on a bearing screw. The plunger mechanism provides a locking device to to keep the front sight post in its upright position while the gun is being fired.

(2) The rear sight (fig. 3) is mounted on a rear sight base and is adjustable for windage. The rear sight base is riveted to the left side of the receiver. The sight leaf is graduated for elevation in 200-yard divisions up to

2,400 yards. The windage scale is marked in 5-mil graduations for 10 mils right or left from zero. e. Flask Hider, M7. The flash hider assembly M7 is attached to the front barrel bearing by means of a retaining clip assembly. The booster cap portion of the flash hider traps enough gas to insure positive recoil. This is important when the gun is fired at angles other than the horizontal.

d. Bipod Mount. The M1919A6 machinegun can be effectively fired from the integral bipod mount. The shoulder stock provides a means of supporting the rear of the bipod mounted gun. The carrying handle provides a method for carrying the weapon and can be positioned out of the gunner's line of sight. (For a detailed description of the tripod mount, see ch. 3.)

e. Tripod Mount, M2. The M2 tripod mount provides a stable and durable mount for the M1919A6 machinegun. Firing the gun from the tripod permits a high degree of accuracy and control. (For a detailed description of the tripod mount, see ch. 3.)

Table I. General Data

Ammunition---------------- Caliber .30 ball, tracer, armor piercing, incen-diaryP armor piercing incendiary, blank, and dummy.

Weight of traversing and 3 pounds.

elevating mechanism. Weight of flash hider_______1 pound.

Total weight of machinegun, 49 pounds* M1919A6 on mount M2 without bipod. Weight of machinegun 33 pounds.

M1919A6, with bipod and shoulder stock.

Maximum effective range____ 1,100 meters.

Rates of fire:

Cyclic_________________ 600 to 675 rounds per minute.

Basic load of ammunition 750 rounds, (on crew—gunner, assistant gunner, and ammunition bearer each carry one ammunition container).

Maximum extent of grazing 600 meters, fire obtainable on level or uniformly sloping terrain.

Normal sector of fire 875 mils.

(with tripod)« Tracer burnout_____________ 900 meters (approx.).

4< Caliber .30 Machinegun M37 (Tank)

a- General. The machinegun M37 (fig. 4) is a belt-fed, recoil-operated, air-cooled, automatic weapon. The gun ia designed for fixed or flexible use. It is also designed for left- or right-hand feed. Ammunition is fed into the weapon by means of a disintegrating type metallic link belt., The M37 is primarily used as a coaxial machinegun; however, it may be used with the following mounts:

(1) Weapon tripod mount, M74.

(2) Machinegun tripod mount, M1917A1.

(3) Caliber .30 machinegun tripod mount, M2.

M1917a1 Type

Fifftire 1. Browning machinegun*

Fifftire 1. Browning machinegun*

Browning Machine Gun 1911

Figure 1—Continued.

Figure 1—Continued.

DNT SIGHT ^m^'ZrZ

1 • / •• ,.:•.. ^ -J^-^bla»"~kfr-s,cht

^vKET lit*

Figure 2. Front sight, machine gun, M1919A6.

6. St^/ite. The sights on this weapon are the same as those for the Browning machine-gun, caliber .30, M1919A6.

Table II. General Data

Ammunition________________ Caliber .30 ball, tracer, armor piercing incendiary, blank, and dummy-

Maximum effective range____ 900 meters (approx.).

Figure 3. Rear sight, macktnegun, M1919A6.

Rates of fire:

M1919a6 Sights

ELEVATION KNOB

cuevation SCREW

•houlocrs of rear sight suoe windage screw knob

WlNOACfc SCALt

M37 Machine Gun
Figure t. Caliber JO machine gun MS7 (tonic).

5. Technique of Fire During Periods of Good

Visibility

The information and techniques described in paragraphs 66 through 94, and 99 through 101, FM 23-63, apply to the caliber .30 machinegun M1919A6 with the following exceptions:

a. Maximum Ordinate*. The maximum or-dinatea of caliber .30 ammunition (fig. 5) vary slightly from those of 7.62-mm ammunition.

b. Beaten Zones. The sizes of the beaten zones of the Browning machinegun, caliber .30 (fig. 6) vary slightly from those of the M60 machinegun.

c. Rates of Fire. The rates of fire with the Browning machinegun, caliber .30, do not lend same as those of the M60 machinegun except for the cyclic rate, which is 600 to 675 rounds per minute.

d. Assault Fire. The characteristics of the Browning machinegun, caliber .30, do not lend themselves easily to use of the weapon in the assault or on patrols; however, some occasions may dictate use of the weapon in such situations.

(1) When the weapon is employed in the

assault or on patrols, a sling should be improvised by coupling two rifle slings. The sling is attached to the grip, passed around the back of the neck, attached to the barrel jacket, and adjusted to the proper length (fifiT. 7).

(2) To engage a target, the gunner faces the target squarely with his left foot slightly forward and his right foot to the rear to offset the recoil. The left hand grasps the carrying handle and the left arm is straight and rigid. The right hand grasps the grip with the forefinger on the trigger. The ammunition belt is slung over the left arm or shoulder, or it may br supported by the assistant gunner.

(3) The gunner observes his fire by watching the tracer stream and beaten zones and adjust his fire as necessary.

Figure 6. Approximate dimensions of beaten zones on level ground for M2 ball ammunition.

AGO 10 SOS a

Ball Ammunition

Figure 6. Approximate dimensions of beaten zones on level ground for M2 ball ammunition.

6. Tactical Employment

Information on tactical employment described in chapter 9, FM 23-67, applies to the Browning machinegun caliber .30, M1919A6, with the exception of employment of the gun in the assault. Because of the weight and ue-sign of the M1919A6 machinegun, this method of employment is not recommended.

M1919a6 Bipod
Figure 7. Assault firing position.

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  • Stephanie Hirsch
    When did the m1919a6 enter service?
    1 year ago

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