Which of the following rounds is specifically loaded with Composition B?

The M549 round is specifically loaded with Composition B, a type of explosive that combines RDX and TNT. Composition B is known for its high detonation velocity and significant shattering effect, making it highly effective for penetrating targets and maximizing the destructive output of the projectile.

The M549 is a ERFB (Extended Range, Full-Bore) projectile designed for use with the M777A2 Howitzer, enhancing its capability to engage enemy forces and infrastructure at greater distances. This distinct combination of propellant allows the M549 to achieve a balance between range and lethality, which is crucial in artillery operations.

In contrast, other rounds like the M795 and M825 are not loaded with Composition B, employing different explosives optimized for various tactical uses, such as increased range or specific target effects. The M1124, on the other hand, is designed for different operational purposes as well, contributing to the versatility of the artillery arsenal but without the unique explosive composition of the M549. Understanding these specifications allows artillery crews to select the appropriate round based on mission requirements and target characteristics.