What type of ammunition does the M240B primarily use?

The M240B is a medium machine gun that primarily uses 7.62 mm ammunition. This caliber is specifically designed for the weapon's capability to engage targets effectively at medium to long range. The 7.62 mm round provides greater stopping power and accuracy, making it suitable for a variety of combat scenarios, and it is commonly used in military operations for suppressive fire and area denial.

The M240B can be chambered for belted ammunition, which facilitates sustained fire in combat situations, providing a significant advantage in terms of firepower over lighter calibers. Its design enables it to maintain a high rate of fire while also being relatively easy to transport and deploy by ground forces.

The other types of ammunition listed do not correspond to the M240B's specifications, thereby emphasizing the importance of understanding the correct caliber for this specific weapon system. This knowledge is crucial for effective operation and logistics in a military context.