U.S. Machine Guns

(Updated 15 February 2012)

7.62mm Machine Gun M60

Operation: Gas Operated
Weight:
23 lbs
Length: 43.5" Overall
Maximum Range: 3,275 meters
Maximum Effective Range (Area target on Tripod): 1,100 meters
Maximum Effective Range (Area target on Bipod): 800 meters
Maximum Effective Range (Point target on Tripod): 800 meters
Maximum Effective Range (Point target on Bipod): 600 meters
Tracer Burnout Range: 900+ meters
Rate of Fire (Sustained): 100 rpm in 6-9 round bursts with 4-5 seconds between bursts (barrel change every 10 minutes)
Rate of Fire (Rapid): 200 rpm in 10-13 round bursts with 2-3 seconds between bursts (barrel change every 2 minutes)
Rate of Fire (Cyclic): 550 rpm (barrel change every minute)
Muzzle Velocity: 2,800 fps
Basic Load: 600 to 900 rounds with a three man crew.
Ammunition Feed: 100 round bandolier, 7 pound weight.
Rifling: 4 lands with a right hand twist and 1 turn every 12 inches.
Trigger Pull: 11.5 pounds maximum, 6 pounds minimum.
Sights: Leaf Sight, 300 to 1,100 meters, marked off in 100 meter increments. Can be equipped with AN/PAS-13(V2) Medium Weapon Thermal Sight (MWTS) or the AN/PVS-4 Night Vision Sight.
Mounts:
M122 Tripod Mount (16 pounds, 875 mil sector of fire)
M6/M197 Pedestal Mount
M4/M142 Pedestal Mount (HMMWV)
Authorized Ammunition:
    7.62mm M61 Armor Piercing
    7.62mm M993 Armor Piercing
    7.62mm M80 Ball
    7.62mm M62 Tracer
    7.62mm M63 Dummy
    7.62mm M82 Improved Blank
Notes: The M60, 7.62mm, Machine Gun is a general purpose weapon capable of being fired from several mounts or handheld. The weapons primary use is for ground operations. Suggested that you use a 4 to 1 combat mix of ball and tracer ammunition. Firing on the move is not authorized from M998/M1038/M1097 HMMWVs, and authorized up to 5 MPH cross-country and 10 MPH on improved roads for the M1025/M1026 HMMWVs (Armament Carriers).
Reference:
U.S. ARMY TM 9-1005-224-10 Operator’s Manual for Machine Gun, 7.62-MM, M60/M60D (April 1998)
FM 3-22.68
Crew Served Machine Guns, 5.56-MM and 7.62-MM (January 2003)

7.62mm Machine Gun M60D

Operation: Gas Operated
Weight:
25 lbs
Length: 43.5" Overall
Maximum Effective Range: 1,100 meters
Maximum Range: 3,275 meters
Tracer Burnout Range: 900+ meters
Rate of Fire (Sustained): 100 rpm (4-6 seconds between bursts, barrel change every 10 minutes)
Rate of Fire (Rapid): 200 rpm (2-3 seconds between bursts)
Rate of Fire (Cyclic): 550 rpm (barrel change every minute)
Muzzle Velocity: 2,800 fps
Ammunition Feed: Variable capacity depending on installation
Rifling: 4 lands with a right hand twist and 1 turn every 12 inches.
Trigger Pull: 20 pounds maximum, 10.5 pounds minimum.
Sights: The AN/PVS-4 Night Vision Sight can be mounted.
Mounts:
M122 Tripod Mount (16 pounds)
M6/M197 Pedestal Mount
Notes: The M60D, 7.62mm, Machine Gun is a general purpose weapon capable of being fired from several mounts. The weapons primary use is for support of ground operations. The M60D is an aircraft door-mounted or vehicle-mounted machine gun. Uses spade style grips. Suggested that you use a 4 to 1 combat mix of ball and tracer ammunition. Firing on the move is not authorized from M998/M1038/M1097 HMMWVs, and authorized up to 5 MPH cross-country and 10 MPH on improved roads for the M1025/M1026 HMMWVs (Armament Carriers).
Authorized Ammunition:
    7.62mm M61 Armor Piercing
    7.62mm M993 Armor Piercing
    7.62mm M80 Ball
    7.62mm M62 Tracer
    7.62mm M63 Dummy
    7.62mm M82 Improved Blank
Reference:
U.S. ARMY TM 9-1005-224-10 Operator’s Manual for Machine Gun, 7.62-MM, M60/M60D (April 1998)

5.56mm M249 Squad Automatic Weapon (SAW)

Operation: Gas Operated
Weight (approx):
16.41 pounds
Length of Gun: 40.87 inches
Ammunition Feed: 200 round linked belt with emergency capability of 20/30 round M-16 magazines
Basic Load: 1,000 rounds in 200 round drums (each drum weighs 6.92 lbs and has 4:1 ball/tracer mix)
Rate of Fire (Sustained): 100 rpm in 6-9 round bursts with 4-5 seconds between bursts (barrel change every 10 minutes)
Rate of Fire (Rapid):
200 rpm in 6-9 round bursts with 2-3 seconds between bursts (barrel change every 2 minutes)
Rate of Fire (Cyclic):
650 to 850 rpm (barrel change every minute)
Maximum Range: 3,600 meters
Maximum Effective Range (Area target on Tripod): 1,000 meters
Maximum Effective Range (Area target on Bipod): 800 meters
Maximum Effective Range (Point target on Tripod): 800 meters
Maximum Effective Range (Point target on Bipod): 600 meters
Maximum Effective Range (Suppression): 1,000 meters
Sights: Peep Sight, 300 to 1,000 meters. Can be equipped with AN/PAS-13(V2) Medium Weapon Thermal Sight (MWTS).
Mounts:
M122 Tripod Mount (16 pounds, 875 mil sector of fire)
M6/M197 Pedestal Mount
Authorized Ammunition:
    5.56mm M855 Ball (Green Tip)
    5.56mm M856 Tracer (Orange Tip)
    5.56mm M199 Dummy
    5.56mm M200 Blank (Violet Tip)
    5.56mm M193 (Degraded Accuracy, Emergency use only)
    5.56mm M196 (Degraded Accuracy, Emergency use only)
Reference:
FM 3-22.68 Crew Served Machine Guns, 5.56-MM and 7.62-MM (January 2003)

7.62mm M240B Machine Gun

Operation: Gas Operated
Weight:
27.6 lbs
Length: 49" Overall
Maximum Range: 3,725 meters
Maximum Effective Range (Area target on Tripod): 1,100 meters
Maximum Effective Range (Area target on Bipod): 800 meters
Maximum Effective Range (Point target on Tripod): 800 meters
Maximum Effective Range (Point target on Bipod): 600 meters
Maximum Effective Range (Suppression): 1,800 meters
Tracer Burnout Range: 900 meters
Rate of Fire (Sustained): 100 rpm in 6-9 round bursts with 4-5 seconds between bursts (barrel change every 10 minutes)
Rate of Fire (Rapid): 200 rpm in 10-13 round bursts with 2-3 seconds between bursts (barrel change every 2 minutes)
Rate of Fire (Cyclic): 650-950 rpm (barrel change every minute)
Basic Load: 900 to 1,200 rounds with a three man crew.
Ammunition Feed: 100 round bandolier, weighs about 7 pounds.
Sights: Leaf Sight – 200 to 1800 meters in 100 meter increments. Can be equipped with AN/PAS-13(V2) Medium Weapon Thermal Sight (MWTS).
Mounts:
M122A1 Tripod Mount (20 pounds, 875 mil sector of fire)
Authorized Ammunition:
    7.62mm M61 Armor Piercing
    7.62mm M80 Ball
    7.62mm M62 Tracer
    7.62mm M63 Dummy
    7.62mm M82 Improved Blank
Reference:
FM 3-22.68 Crew Served Machine Guns, 5.56-MM and 7.62-MM (January 2003)

.50 Caliber Browning Machine Gun M2HB

Operation: Recoil
Weight (approx):
84 pounds
Weight (barrel): 24 pounds
Length of Gun: 65.13 inches
Length of Barrel: 45 inches
Rifling: 8 lands with a right hand twist and 1 turn every 15 inches.
Rate of Fire (Cyclic): 450 -550 rpm
Maximum Range: 6,764 meters
Maximum Effective Range (Area Targets): 1,830 meters
Maximum Effective Range (Point Targets / Single Shot): 1,500 meters
Sights: Leaf-type. 100 to 2,600 yards.
Mounts:
    M3 Tripod Mount
    M63 Anti-Aircraft Mount (144 pounds, 85° Elevation, -29° Depression, 360° traverse)
    M36 Truck Mount
    M31C Pedestal Mount
Authorized Ammunition:
    .50 M2 Ball (7,400m maximum range, 2,930 fps)
    .50 M1 Tracer (Gilded Metal Jacket) (5,575m maximum range, 1,800m tracer range, 2860 fps)
    .50 M1 Tracer (Clad Steel Jacket) (5,450m maximum range, 1,800m tracer range, 3,030 fps)
    .50 M17 Tracer (5,450m maximum range, 2,450m tracer range, 3,030 fps)
    .50 M1 Incendiary (6,050m maximum range, 3,090 fps)
    .50 M2 Armor Piercing (AP) (7,400m maximum range, 2,930 fps)
    .50 M8 Armor Piercing Incendiary (API) (6,470m maximum range, 3,050 fps)
    .50 M20 Armor Piercing Incendiary Tracer (API-T) (6470m maximum range, 300-1750m tracer range (*), 3,050 fps)
[* – Tracer is dim at near ranges, but becomes brighter the further it moves away from weapon.]

M2 AP Penetration when fired from 45” barrel at 2,935 fps muzzle velocity

Material

200m

600m

1,500m

Armor Plate (Homogenous)

1

0.7

0.3

Armor Plate (Face Hardened)

0.9

0.5

0.2

Sand (100 lb/ft3 dry)

14

12

16

Clay (100 lb/ft3 dry)

28

27

21

M2 Ball Penetration when fired from 45” barrel at 2,935 fps muzzle velocity

Material

200m

600m

1,500m

Sand (100 lb/ft3 dry)

14

12

6

Clay (100 lb/ft3 dry)

28

27

21

Concrete

2

1

0

Notes: Can accept the AN/TVS-5 Night sight.
References:
FM 23-65 Browning Machine Gun Caliber .50 HB, M2 (19 June 1991)