What caliber is the M240 machine gun?

The M240 machine gun is chambered for the 7.62mm NATO cartridge, which is commonly recognized for its effectiveness in providing sustained fire support. This caliber is widely used by military forces around the world due to its versatility and balancing of range, accuracy, and stopping power. The design of the M240 allows it to achieve high rates of fire while maintaining reliability, making it an essential tool for infantry and support units. The 7.62mm round can penetrate various types of cover and is effective against both personnel and light vehicles, contributing significantly to its status as a standard machine gun in numerous armed forces. Other calibers listed, such as 5.56mm, 9mm, and 12.7mm, correspond to different types of firearms and use cases, but they do not reflect the specific design and operational role of the M240.