(FORT BENNING, GA) - Under the watchful eye of the instructor, a trainee sends rounds down range. The M2 has varying cyclic rates of fire, depending on the model. The M2HB (heavy barrel) air-cooled ground gun has a cyclical rate of 450-575 rounds per minute. The early M2 water-cooled AA guns had a cyclical rate of around 450–600 rpm.

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