FM 3-22.68 Crew Serve Weapons

 

A link to FM 3-22.68 can be found here.

1) What is the maximum range of the M249 SAW?

A: 3600 meters (m)

2) What is the maximum effective range of the M249 on an area target?

A: Tripod – 1,000 meters ; Bipod – 800 meters

3) What is the maximum effective range of the M249 on a point target?

A: Tripod – 800 meters ; Bipod 600 meters

4) What does SAW stand for?

A: Squad Automatic Weapon

5) What is the weight of the M249?

A: 16.41 lbs

6) What is the length of the M249?

A: 40.87 inches

7) Describe the M249.

A: The M249 machine gun is a gas-operated, air-cooled, belt or magazine-fed, automatic weapon that fires from the open-bolt position

8) What are the rates of fire for the M249?

A: 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)

9) What are the cycles of functioning for the M249?

A: Feeding, Chambering, Locking, Firing, Unlocking, Extracting, Cocking

10) Name the 3 assault firing positions for the M249.

A: Shoulder, Hip, Underarm

11) What are the two unique features of an M249?

A: It accepts M4 magazines and has a regulator to change the rate of fire

12) What is the weight of the M240B?

A: 27.6 lbs

13) Describe the M240B.

A: The M240B is a belt-fed, air-cooled, gas-operated, fully automatic machine gun that fires from the open bolt position

14) What are the rates of fire for the M240B?

A: 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 ever 2-3 seconds (barrel change every two minutes)

Cyclic – 650-950 rounds per minute (barrel change every minute)

15) What is the maximum range of the M240B?

A: 3,725 meters (m)

16) What is the maximum effective range of the M240B on point targets?

A: Tripod – 800 meters , Bipod – 600 meters

17) What is the maximum effective range of the M240B on area targets?

A: Tripod – 1,100 meters, Bipod – 800 meters

18) What is the length of the M240B?

A: 49 inches

19) What is the distance of tracer burnout for the M240B?

A: 900 meters

20) What optic is used for machine guns?

A: Elcan M145

21) What are the three classifications of fire?

A: Respect to the ground, weapon, and target

22) What weapon systems are covered in FM 3-22.68?

A: M60, M249, M240B