What type of explosive is loaded in the projectile of the 10 mm HE round?

The 10 mm HE (High Explosive) round utilizes Comp B as its explosive filler. Comp B is a type of composite explosive commonly used in military munitions due to its effective performance and stability. It primarily consists of a mixture of RDX and TNT, enhancing the overall energy output while maintaining a manageable sensitivity. This combination allows Comp B to achieve a better balance between power and safety, making it ideal for artillery projectiles like the 10 mm HE round.

In contrast, other explosives listed, such as TNT, RDX, and HMX, have different applications and characteristics. While TNT is a traditional military explosive known for its robustness and reliability, it is typically used independently or in certain mixtures rather than as the primary explosive in this specific round. RDX is a more powerful explosive often used in compositions to enhance performance but does not align with the specific designation of the explosive in the 10 mm HE round. HMX is even more powerful than RDX and is primarily used in higher-order explosives and specialized applications, but it is not the standard filler for this particular projectile. Therefore, Comp B is the correct explosive choice for this type of ammunition.