The barrel of the M-60 squad automatic weapon should be changed after how many rounds of rapid fire?
by 
Highlander is semi-retired from AB
ANSWERS: 5
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Generally we are trained to change out barrels on the GPMG at between 250-500 rounds of sustained fire, but in combat conditions M-60's have been known to fire 10-12 belts of ammo before overheating. Overuse can cause jamming of ammo in the reciever, or in the barrel, cooking off of ammo in the barrel, and occaisionally M-60's have been known to "run-away" due to overheating of the sear mechanism and rolling-bolt mechanism.
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After killing 20 Islamo fascists.
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the barrell should be changed every 280-250 max
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well... in ideal conditions as often as stated above...it would be wise to conserve ammo even in the worst of situations to keep the barrel cool and operating as long as possible
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They have come out with a modded barrel...check it out. http://www.youtube.com/watch?v=vO4iZSxOSrA
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