What is the weight of the M240B? and L
B-27.6 L-22.3
What Field Manual covers the M240B?
FM 3-22.68 Chapter 3
Describe the M240B.
The M240B is a belt-fed, air-cooled, gas-operated, fully automatic machine gun that fires
from the open bolt position.
(FM 3-22.68 Jan 2003 / 3-1 / PDF 8
What is the sustained rate of fire for the M240B?
100 Rounds per minute fired in 6 to 9 round bursts and 4 to 5 seconds between bursts.
Barrel change every 10 minutes.
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the rapid rate of fire for the M240B?
200 Rounds per minute fired in 10 to 13 round bursts and 2 to 3 seconds between bursts.
Barrel change every 2 minutes.
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the cyclic rate of fire for the M240B?
650 to 950 Rounds per minute fired in continuous bursts. Barrel change every minute.
(FM 3-22.68 Jan 2003 / 3-1 / PDF 84)
What is the maximum range of the M240B?
3725 meters
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the maximum effective range of the M240B with tripod and T&E?
1100 meters
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the maximum effective range of the M240B for an area target?
Tripod -1,800 meters
Bipod - 800 meters
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the maximum effective range of the M240B for a point target?
Tripod - 800 meters
Bipod - 600 meters
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the length of the M240B?
49 inches
(FM3-22.68 Jan 2003 / 3-1 / PDF 83)
What is the maximum tracer burnout for the M240B?
900 meters
(FM 3-22.68 Jan 2003 / 3-1 / PDF 83)
What types of ammunition can be used with M240B?
M80 - Ball
M61 - Armor Piercing
M62 - Tracer
M63 - Dummy
M82 - Blank
(FM 3-22.68 Jan 2003 / 3-3 / PDF 86)
What are the proper clearing procedures for the M240B?
Move the safety to the fire "F" position.
With his right hand, (palm up) pulls the cocking handle to the rear, ensuring the bolt is locked to
the rear (bipod mode).
Return the cocking handle to its forward position.
Place the safety on safe "S."
Raise the
What are the proper procedures for performing a function check on the M240B?
Places the safety on "F."
Pulls the cocking handle to the rear, locking the bolt to the rear of the receiver.
Returns the cocking handle to the forward position.
Places the safety on "S," and closes the cover.
Pulls the trigger. (Bolt should not go forwar
what is the name of the 240s tripod
M122A1 tripod
what is meant by traversing fire?
adjusting fire to the left and right while on tripod
what is meant by searching fire
adjusting fire up and down while on tripod
what is meant by grazing fire
this is when you have a cone of fire that is at no point higher than 1 meter off the ground
what is meant by plunging fire
when you are firing from high grounds to low grounds, and the cone of fire exceeds 1 meter off the ground
what is meant by oblique fire
Oblique fire is when the long axis of the beaten zone is at an angle other than a right angle to the front of the target
what is meant by enfilade fire
Enfilade fire is when the long axis of the beaten zone coincides or nearly coincides with the long axis of the target. This type of fire is either frontal or flanking. It is the most desirable type of fire with respect to a target, because it makes maximu
what are the 8 major groups of the m240
barrel assembly
cover assembly
butt stock assembly
receiver assembly
trigger assembly
operating rod assembly
bolt assembly
driving spring rod assembly