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| Browning Machine Gun caliber .50 HB, M2 |
Browning Machine Gun caliber .50 HB, M2
 11-12-2004 11:45 AM
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 The Browning machine gun caliber .50 HB, M2 is a belt-fed, recoil-operated, air-cooled, crew-served machine gun. The gun is capable of single shot, as well as automatic fire, and operates on the short recoil principle. a. The machine gun is capable of being fed from either the right or left by repositioning certain parts. The weapon has nonfixed headspace that must be set. Timing must also be adjusted to cause the gun to fire slightly out of battery to prevent damage to moving parts. The force for recoil operation is furnished by expanding powder gases, which are controlled by various springs, cams, and levers. Maximum surface of the barrel and receiver are exposed to permit air cooling. Perforations in the barrel support allow air to circulate around the breach end of the barrel and help in cooling the parts. A heavy barrel is used to retard early overheating. b. The gun has a leaf-type rear sight , graduated in both yards and roils. The scale ranges from 100 to 2,600 in yards, and from 0 to 62 in mils. The windage knob-permits deflection changes to right or left of center. The front sight is a fixed blade type with cover. General Data- Weight (approx) 84 pounds Weight of barrel 24 pounds Length of gun 65.13 inches Length of barrel 45 inches Length of rifling (approx) 41.88 inches Number of lands and grooves 8 Twist, right-hand one turn in 15 inches Feed link-belt Operation recoil Cooling air Muzzle velocity (approx) 3,050 feet per second Rate of fire (cyclic) 450 to 550 rounds per minute Maximum range (approx) 7,440 yards or 6,764 meters Maximum effective range (approx) 2,000 yards or 1,830 meters • Area targets 1,830 meters • Point targets, single shot 1,500 meters |
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