Figure Installing the Blank Firing Adapter
c. Qualification Firing. Qualification utilizes the same strings of fire outlined above in practice firing, with the additional requirement to zero the weapon. There are a total of 156 rounds fired in the 12.7 points . A bullet hole on the line between two squares may be counted in either square, but not in both squares. It should be scored in the square which will give the higher score. Pasters 1 through 4 may receive a total of 24 points 4 scoring squares with a total possible point value of...
Walking the FPL
Once the machine gun unit leader has ensured that positions are occupied properly, machine guns are immediately set in firing positions to cover assigned sectors of fire and principal direction of fire PDF or FPLs. The squad leader points out definitive terrain features to each machine gun team when prescribing sectors of fire, PDFs and FPLs. When a FPL is assigned, it should be walked whenever practicable. Walking the FPL allows the team to Figure G-6. Dead Space in FPL. position behind the...
b During Extreme Combat Situations
Press charger handle locks and rotate charger handles down. Pull and lock the bolt to the rear. Push the charger handles forward and up to their locked position. Relay the gun on target and attempt to fire. c. Subsequent Action. Two potentially serious stoppages may occur with the MK-19 that require different procedures from those described above. 1 Bore Obstruction. This means that part of the previous round may be lodged in the barrel and could possibly prevent the next warhead from passing...
Fundamentals
a. Essential Factors of Indirect Laying. Four essential factors must be considered in indirect laying. These are direction, elevation, mask clearance, and troop safety. b. TOG Method. The observer occupies an observation post OP from which he can see the gun position if possible , the mask, friendly troops if present, and the targets. The observer draws a diagram to scale of these various positions in relation to the OP, using a compass to determine their magnetic azimuths and a map to...
a Traversing and Elevating Mechanism See
1 Traversing mechanism. The traversing mechanism consists of a traversing bar, slide, and screw assembly. The traversing bar, graduated in 5-mil increments and fits between the trail legs of the tripod. The traversing slide and screw assembly are clamped in place on the traversing bar by the traversing slide lock lever. When the traversing slide is locked to the traversing bar, the traversing hand-wheel should be centered. The traversing slide is properly mounted when the lock lever is to the...
Beaten Zone
The beaten zone is the area on the ground upon which the cone of fire falls. a. Effect of Slope of Ground. When the cone of fire falls on level ground which is at the same height as the gun, the lengths of the beaten zone are as shown in figure 6-3. The maximum length is obtained when the slope of the ground approximates the angle of fall of the bursts. On rising ground, the length of the pattern is shortened. The minimum length occurs where the slope of the ground is perpendicular to the cone...
ePositioned to Produce Enfilade Fire To
achieve the greatest effect from the machine gun, position it so that the long axis of the beaten zone coincides with the long axis of the target. This type of fire, called enfilade fire, causes the maximum amount of rounds to be concentrated on the maximum amount of targets, significantly increasing the chances of hitting targets. Enfilade fire is normally associated with flanking fire. f. Interlocking Fire. Ensuring that fire from one machine gun position interlocks with the fires of other...
Note Rjo
Overhead fire is not delivered when the gun is mounted on the bipod, unless the vertical interval of the troops below the gun target line is such as to make safety obvious. The center of the cone of fire must clear the heads of the friendly troops by a prescribed distance. See figure 6-22. This distance, known as minimum clearance, is found by adding together the following elements The height of a man, standing, taken as 1.8 meters. Half the vertical dimension of the 100 percent cone of fire at...
The Mil A Unit of Angular Measure
The machine gunner bases much of his work on the measurement and application of angles. The width of a target, for example, is measured by constructing an angle which has imaginary lines from the flanks of the target to the gunner's position observer's position . Angles can be measured in degrees, mils, and other units. In most cases, the mil is used for calculating firing data. The mil is a subdivision of a complete circle. There are 6,400 mils in a circle or approximately 17.8 mils in 1...
Note Rlt
There are two pins on each side of the belt feed pawl. The larger is the belt feed pawl arm pin the smaller is the belt feed pawl arm locating pin. See figure 4-43. For a left-hand feed, the belt feed pawl arm must be placed over the pins so that the belt feed pawl arm is toward the latch end of the cover, when the assembled slide is returned to the cover. Place the small end of the belt feed pawl spring over the belt feed pawl spring stud inside the belt feed slide . Place the assembled pawl...
Types
a. High Explosive. High explosive HE projectiles are used for fragmentation effect against light materials and fortifications and personnel. There are two types of HE rounds M383 DODAC 1310-B571 and M384 DODAC 1310-B470 . Their fillers and body materials differ, although performance traits are the same. The casings are olive drab with a yellow ogive and yellow markings. b. High Explosive Dual Purpose. High explosive dual purpose HEDP ammunition has a high explosive projectile with an internally...
Classes of Fire with Respect to the Ground
a. Grazing Fire. Fire approximately parallel to the ground where the center of the cone of fire does not rise above 1 meter. When firing over level or uniformly sloping terrain, the maximum extent of grazing fire obtainable for the M240G is approximately 580 meters. This figure is rounded to 600 meters to simplify calculations in tactical planning and to accommodate the rear sights of the M240G which are graduated in 100 meter increments. The maximum extent of grazing fire obtainable for the M2...
Manipulation Exercises
Manipulation is the process of shifting the direction of the gun from one definite point to another definite point. After the gunner understands the principles of sighting and aiming, and can assume a satisfactory firing position, he is given instruction in manipulating the gun to obtain an accurate initial lay, then to shift the direction of the gun to successive points with proficiency. a. Manipulation Exercise. The coach ensures that the following instructions are understood and followed 1 A...
Laying the Gun for a Principal Direction of Fire
To engage a PDF, you are allowed to traverse and search over the entire dangerous avenue of approach, so the PDF is generally in the center of the sector. Lay the gun on the near end of the PDF and take the direction reading. Laying for elevation is accomplished by firing the PDF and adjusting the center of impact onto the near end of the avenue of approach. The gun is then fired employing traverse and search to cover the entire target. The number of mils of traverse and search necessary to...
Figure Windage and Elevation Peep Sight Correction Chart
d. Zeroing. Zeroing aligns the sights with the barrel so that the point of aim equals the point of impact. Ten-meter zeroing is for conducting 10-meter fire only and has no further application. Zeroing at range or field zeroing is the automatic rifleman's battlesight zero and must be recorded. 1 10-meter zeroing, set the sights mechanical zero . The automatic rifleman indexes or places the elevation knob on a range of 700 meters. He centers the rear peep sight by rotating it clockwise right as...
US Marine Corps
PCN 143 000014 00 MCWP 3-15.1 Machine Guns and Machine Gun Gunnery DEPARTMENT OF THE NAVY Headquarters United States Marine Corps Washington, D.C. 20380-0001 Marine Corps Warfighting Publication MCWP 3-15.1, Machine Guns and Machine Gun Gunnery, describes how various machine guns are maintained and employed by the U.S. Marine Corps' machine gun crews. It also provides the principles and techniques for their use in engaging and destroying enemy targets. This reference publication is designed for...
Figure Ruptured Cartridge Case Extractor
the proper position for firing. Only the first round should be fired with the parts fully forward. The gun fires automatically as long as the trigger and bolt latch are held down, and ammunition is fed into the gun. During the recoil of 1 1 8 inches, the barrel buffer spring is compressed by the barrel extension shank since the notch on the shank is engaged in the cross groove in the piston rod head. The spring is locked in the compressed position by the claws of the accelerator, which engage...
Figure MG Gunners and Leaders Rule Data
The gunner's and leader's rules allow the determination of the safety limit by setting the safety angle on the gun and looking across the gun's sights. The safety limit is determined by the intersection of the new line of aim and the ground. When the feet of the friendly troops reach this point the fire must be lifted or shifted. 1 Gunner's rule. The gunner's rule is used to determine the safety limit when the range to the target is 850 meters or less and friendly troops are at least 350 meters...
Figure Cutaway View
The M240G is designed for easy disassembly and assembly the use of force is not necessary. No special tools are required. As the weapon is disassembled, place the parts in the order in which they are removed on a clean, flat surface. This reduces the possibility of losing a part and aids in assembly, as all parts are replaced in reverse order. To prevent unnecessary wear, disassembly should be kept to a minimum, consistent with maintenance and training requirements. See figure 3-4. Disassembly...
Classes of Fire with Respect to the Target
a. Frontal Fire. The long axis of the beaten zone is at a right angle to the long axis of the target. See figure 6-9. b. Flanking Fire. Delivered against the flank of a target. See figure 6-9. c. Oblique Fire. The long axis of the beaten zone is at an angle, but not a right angle, to the long axis of the target. See figure 6-9. d. Enfilade Fire. The long axis of the beaten zone coincides or nearly coincides with the long axis of the target. This class of fire is either frontal or flanking and...
Figure Single EType and Double EType Silhouette Targets
Acquires the proper sight picture and give an UP to safety personnel. Engage pasters 1 through 4 in 20 seconds, firing a three-round burst at each paster. The order to mask is given by stating gas. Once the shooters are masked the fire command is given. When the following fire command is given, repeat each element of as it is given. pasters seven through eight seven hundred traverse and search, three-round bursts at my command Acquire the proper sight picture and give an UP to safety...
Army Michen Guns
The gun bag is used to carry and protect the M240G machine gun system, complete. It consists of a large outer bag and a smaller, removable spare barrel bag inside. The complete gun bag is used to carry the machine gun, tripod, flex-mount, spare barrel, and all user maintenance equipment and other accessories SL-3 components see figure 3-45 . This will keep the gun and all its components together and protected during events such as unit movements for embarkation on ships or aircraft. The...
Machine Gun Employment
Properly employed, the machine gun provides a high volume of accurate fire in support of the infantry in both the offense and defense. In the offense, the machine gun can add firepower to the assault, but it is often best employed to suppress or neutralize the objective from a base of fire. The long-range, close defensive, and final protective fires of the machine gun provide an integral part of the defense against infantry attack. HMGs may also be used to destroy lightly armored vehicles or as...
b Barrel Buffer Body Group See figure
a Barrel Buffer Tube Lock Assembly. Turn the barrel buffer body group upside down. Pry up on the barrel buffer tube lock latch to disengage the latch before moving the lock body to the rear. Pry up the latch end of the assembly, so that the lug will clear the barrel buffer body. At the same time, press down on the front of the lock body to keep it from springing out. Turn the accelerator back to push the barrel buffer tube assembly out of its slot. b Barrel Buffer Body Spring Lock. In most...
Figure Barrel Buffer Body Group Exploded View
visible through the 3 8-inch hole in the right side plate. Place the smallest loop of a caliber .50 link, or suitable spacer, between the trunnion block and the barrel extension. Screw the barrel all the way into the barrel extension then unscrew the barrel two notches. Remove the link and close the cover. This completes general assembly. h. Function Check. To check for correct assembly, the gunner ensures that the bolt is forward and the cover is closed. With the bolt latch release lock...
Range Determination and Windage Corrections
Range determination is the process of determining distance between two points. There are two methods of estimating range by eye mental unit of measure yardstick and the appearance of objects. The gunner needs training and practice in both methods over varied terrain and under varied conditions of light and weather. A definite system of range determination, frequently practiced, is the only way to make estimation by eye reliable. For information on range estimation by eye, see section IV,...
Figure Spare Barrel Bag 1
leader. This would enable the gunner to detect, identify, and adjust his own fire onto targets. The AN PVS-7Bs are lightweight 1.5 lbs. , small, and easy to carry and use. This is important when considering the load already carried by machine gun teams. The AN PVS-7B NVG can be hand-held or worn with a head mount. This is important if issued to the gunners because gunners need both hands free to operate the weapon and manipulate the T amp E. The AN PVS-7Bs have a range of 250 meters in...
Vehicle Mounts 1
a. Types. The MK-19 mounts on the M4 pedestal mount, the M66 ring mount, and the HMMWV weapons station. 1 Pedestal mount, M4. This is designated for installation on M151 series vehicles e.g., the fast attack vehicle see figure 5-37, page 5-27 . The mount is composed of a pintle socket, pintle clamping screw, column, and braces. See TM 9-1005-245-14 for information on the pedestal. For information on mounting the MK-19, see TM 9-1010-231-13 amp P. 2 M66 ring mount. This mount is designed for...
Caution Fkj
The windage adjustment screws will break with the slightest over torquing. Be careful not to over tighten the adjustment screws. The combination front sight adjusting tool is used for elevation and windage adjustments see figure 3-72 . This tool unlocks the front sight blade retaining strap and has a special slotted end piece to turn the front sight blade for elevation changes. In addition, a hex wrench is included on another section of the tool. This hex wrench is designed to turn the socket...
Figure Yoq
Tip is aluminum, or tip is painted blue with an aluminum ring. Armor-Piercing-Incendiary-Tracer M20 Tip is painted red with an aluminum ring. Saboted Light Armor Penetrator M903 Round is a tungsten penetrator in an amber tinted sabot. Saboted Light Armor Penetrator-Tracer M962 Round is a tungsten penetrator in a red tinted sabot. Blue plastic bullet with red tip and plastic case. 3 holes are drilled in the cartridge case. There is no primer.
Sight Settings and BZO Procedures
This paragraph provides information on how to set the sights for elevation and windage for the SAW. It also includes information on how to make corrections if the initial setting on the windage knob or peep sight is not accurate. At a 10-meter target, each paster is 1 cm. Therefore, two clicks on the windage knob in either direction moves the strike of the round left or right 1 cm and two turns on the peep sight moves the strike of the round up or down 1 cm. For example If the shot group was 2...
Technical Manuals TMs
08521A-10 1A Machine Gun 40mm MK19 MOD 3 08670A-10 1A M240 Machine Gun 7.62 mm with change 1-3 08670B-23 amp P 2 M240G Machine Gun 7.62mm 1005-01-359-2714 Supplement _1 08686A-13 amp P 1 Machine Gun Mount MK64 9-1005-201-10 Operator's Manual for Machine Gun, 5.56MM, M249 W Equipment NSN 1005-01-127-7510 EIC 4BG TM-08671A-10 1 9-1005-213-10 Operator's Manual for Machine Guns, Caliber .50 Browning, M2, Heavy Barrel Flexible, W E NSN 1005-00-322-9715 EIC 4AG M48 Turret Type 1005-00-957-3893 EIC...
The Mil Formula WERM Formula
Combining the above principles, a useful equation called the WERM formula has been developed. Figure 6-57. Lead Angle, Moving Ground Target. Figure 6-58. Lead Angle, Aerial Target. This may be expressed in several different ways mathematically. The most useful are W Width in meters R Range in thousands of meters M Mils Any one of the elements of the formula can be determined knowing the other two. For example, in figure 6-51, an observer desires to know the distance between two objects A and B...