Which type of round typically contains black markings?

The type of round that typically contains black markings is illumination. Illumination rounds are designed to provide light for military operations, often used during nighttime missions. The black markings on these rounds help to identify them, ensuring that personnel can quickly recognize their purpose and differentiate them from other types of ammunition.

Illumination rounds serve a crucial role in enhancing visibility in dark environments, which is essential for target identification and situational awareness. The distinct black markings help operators and support personnel to ensure the correct rounds are being used in the proper context, which is vital for safety and operational effectiveness.

In contrast, high explosive rounds are usually marked with different colors that signify their specific explosive content and purpose. Smoke or screening rounds often have markings that indicate their function in obscuring visibility with smoke, and training rounds display markings reflecting their nature as non-lethal ammunition designed for practice, further distinguishing them from other operational munitions.