Which principle is NOT one of the eight principles of machine gunnery?

The principle of independent fire is not one of the eight principles of machine gunnery. The eight principles focus on concepts that enhance the effectiveness and efficiency of machine gun operations. Mutual support emphasizes coordination between units, ensuring that one gun team can support another. Economy involves the judicious use of ammunition, placing rounds on target without waste. Cover and concealment pertains to minimizing exposure to the enemy while enhancing the effectiveness of fire.

In contrast, independent fire implies operating without the necessary integration or coordination with other units or assets, which can lead to inefficiencies and increased vulnerability in combat situations. Thus, the correct answer highlights a deviation from the collective and supportive nature that defines the established principles of machine gunnery.