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47 Cards in this Set

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  • Back

FM for m249, m240B, m60

Fm 3-22.68

FM for M2 .50 cal

Fm 3-22.65

FM for MK19 grenade launcher

Fm 3-22.27

Maximum range of m249

3600m

Maximum effective ranges for m249

Bipod point 600m


Tripod point 800m


Bipod area 800m


Tripod area 1000m


Grazing fire 600m


Suppression 1000m

Rates if fire for m249

Sustained 50 RPM in 3-5 round bursts


Rapid 100 RPM in 8-10 round bursts (BARREL CHANGE EVERY 2 MIN)


Cyclic 650-850 RPM (BARREL CHANGE EVERY 1 MIN)

Maximum range of M240

3725m

Maximum effective ranges of M240

Maximum effective range 1100m


Grazing fire 600m


Bipod point 600m


Tripod point 800m


Bipod area 800m


Tripod area 1100m


Tracer burnout 900m


Suppression 1800m

Rates of fire for M240

Sustained 100 RPM in 6-9 round bursts


Rapid 200 RPM in 10-13 round bursts (BARREL change every 2 min)


Cyclic 650-950 RPM (barrel change every 1 min)

Maximum range of M2

6764m

Maximum effective ranges of M2

Area targets 1830m


Point target single shot 1500m


Grazing fire 700m

Rates of fire for the M2

Sustained and Rapid 40 RPM in 6-9 round bursts


Cyclic 450-550 RPM

Maximum range of MK19

2212m

Maximum effective ranges of MK19

Point 1500m


Area 2212m

Weight of MK19 (gun, cradle and tripod)

143lbs

Ammunition HEDP casualty radius

15m

Rates of fire for MK19

Sustained 40 RPM


Rapid 60 RPM


Cyclic 325-375 RPM

Factors that affect a burst of fire

The gunner and rate of fire


The gun and ammunition


Clarity of target


Air/weather


Distance

This is the curved path the round takes during its flight

Trajectory

This is the highest point above the line of sight which a projectile rises during its flight. About 2/3 the distance from weapon

Maximum ordinate

The pattern made by a group of rounds resulting from a burst of fire

Cone of fire

The elliptical pattern formed on the ground or target by the striking rounds

Beaten zone

The area between the muzzle of the weapon and the target where the trajectory rises less then 1.8m above the ground including the beaten zone

Danger space

The different kinds of the MGs fire in respect to the ground

Grazing or plunging

Name 4 different types of MG fire in respect to the target

Frontal, flanking, oblique and enfilade

The tyoes of MGs fire in respect to the weapon

Fixed, traversing, searching, traverse and searching, free gun

What is grazing fire

A cone of fire that rises less then 1m above the ground. The danger space is from the barrel of the weapon to the farthest round impact

What is plunging fire

When the rounds arch and the danger zone is within the beaten zone. This is also a method of indirect fire

What is frontal fire

This occurs when the long access of the beaten zone is at a right angle to the front of the target

What is flanking fire

This occurs when the gunner fires at the side of the target

What is oblique fire

This occurs when the long access of the beaten zone is at an angle other then a right angle to the front of the target

What is enfilade fire

This occurs when the long access of the beaten zone coincides or nearly coincides with the long access of the target

What is fixed fire

This is delivered against a stationary point target when the depth and width of the beaten zone covers the target

What is traversing fire

This distributes in width by successive changes in direction

What is searching fire

This is distributed in depth by successive changes in elevation

What is traversing and searching fire

This is a combination in which successive changes in direction and elevation

What is free gun fire

When fire is delivered against targets requiring major changes in direction and elevation. This is used free of the T&E

Describe a sustained rate of fire

The normal rate of fire for a gunner where the weapon doesn't require excessive barrel changes

Describe a rapid rate of fire

Barrel changes every 2 minutes. Allows an exceptionally high volume if fire but only for a short period

Describe a cyclic rate of fire

This is achieved when the trigger is held to the rear uninterrupted for 1 minute

Name pre determined fires

Sector of fire


Final protective fire


Final protective line


Principal direction of fire


Grazing fire


Dead space


Primary sector of fire


Secondary sector of fire

Name some of the methods of fire control

Verbal


Hand and arm signals


Personal contact


Range cards


Standard operating procedures

Gun team initiated methods of fire

Observation


Fire


Check


Return fire


Shift fire


Rate of fire


Mutual support

Name types of fire commands

Initial fire commands


Subsequent fire commands


Doubtful elements and corrections


Abbreviated fire commands

Name the elements in a range card

Weapons symbol


Sector of fire


Principal direction of fire or final protective line


Range azimuth


Number of targets


Location of gun position


Magnetic north arrow


Data section

What kind of M240 is mounted on a helicopter

M240h

What kind of M240 is mounted on a Bradley

M240e1