FM 3-22.68 Crew Serve Weapons Flashcards
What is the maximum range of the M249 SAW?
3600 meters (m)
What is the maximum effective range of the M249 on an area target?
Tripod – 1,000 meters ; Bipod – 800 meters
What is the maximum effective range of the M249 on a point target?
Tripod – 800 meters ; Bipod 600 meters
What does SAW stand for?
Squad Automatic Weapon
What is the weight of the M249?
16.41 lbs
What is the length of the M249?
40.87 inches
Describe the M249.
The M249 machine gun is a gas-operated, air-cooled, belt or magazine-fed, automatic weapon that fires from the open-bolt position
What are the rates of fire for the M249?
Sustained – 100 rounds per minute, 6-9 round bursts every 4-5 seconds (barrel change every ten minutes)
Rapid – 200 rounds per minute, 6-9 round bursts every 2-3 seconds (barrel change every two minutes)
Cyclic – 650-850 rounds per minute (barrel change every minute)
What are the cycles of functioning for the M249?
Feeding, Chambering, Locking, Firing, Unlocking, Extracting, Cocking
Name the 3 assault firing positions for the M249.
Shoulder, Hip, Underarm
What are the two unique features of an M249?
It accepts M4 magazines and has a regulator to change the rate of fire
What is the weight of the M240B?
27.6 lbs
Describe the M240B.
The M240B is a belt-fed, air-cooled, gas-operated, fully automatic machine gun that fires from the open bolt position
What are the rates of fire for the M240B?
Sustained – 100 rounds per minute, 6-9 round bursts every 4-5 seconds (barrel change every ten minutes)
Rapid – 200 rounds per minute, 10-13 round bursts every 2-3 seconds (barrel change every two minutes)
Cyclic – 650-950 rounds per minute (barrel change every minute)
What is the maximum range of the M240B?
3,725 meters (m)
What is the maximum effective range of the M240B on point targets?
Tripod – 800 meters , Bipod – 600 meters
What is the maximum effective range of the M240B on area targets?
Tripod – 1,100 meters, Bipod – 800 meters
What is the length of the M240B?
49 inches
What is the distance of tracer burnout for the M240B?
900 meters
What optic is used for machine guns?
Elcan M145
What are the three classifications of fire?
Respect to the ground, weapon, and target
What weapon systems are covered in FM 3-22.68?
M60, M249, M240B
