M60
Caliber 7.62 x 51 mm
Firearm action gas operated open bolt
Overall length 1.077 mm (42.4 in)
Barrel length 560 mm (22 in)
Max range 3,725 m (4,075 yd)
Rate of fire 550 round/min
Muzzle velocity 853 m/s (2,800 ft/s)
Wieght unloaded 23.1 lb
Manufactured saco defense U.S. Ordnance
550 rounds a minute, I heard that some guys researched this and used an M60 and made a longer belt to hold 850 rounds and they fired all 850 rounds without stopping and no overheating in 1 minute 45 seconds. Can anybody prove this?