Which rate corresponds to M2 sustained rate?

Which rate corresponds to M2 sustained rate?

• A. Less than 40 rpm, 6-9 end burst, 10-15 sec pause, barrel change at EOD or if damaged
• B. 100 rpm
• C. 200 rpm
• D. 550-650 rpm

Answer: (A)

The rate being tested is the sustained rate, which is the slowest firing pace designed for long-duration fire without overheating the weapon. For the M2, sustained rate is less than 40 rounds per minute and is built around short bursts of 6–9 rounds with long pauses of about 10–15 seconds between bursts. You would also change the barrel at the end of the day or if it’s damaged. This approach preserves barrel life, maintains some accuracy, and avoids rapid heat buildup during extended use. The higher rates listed describe rapid or cyclic fire, which produce far more heat and are not suitable for sustained firing.

The rate being tested is the sustained rate, which is the slowest firing pace designed for long-duration fire without overheating the weapon. For the M2, sustained rate is less than 40 rounds per minute and is built around short bursts of 6–9 rounds with long pauses of about 10–15 seconds between bursts. You would also change the barrel at the end of the day or if it’s damaged. This approach preserves barrel life, maintains some accuracy, and avoids rapid heat buildup during extended use. The higher rates listed describe rapid or cyclic fire, which produce far more heat and are not suitable for sustained firing.