How does humidity affect machine gun fire?

Humidity can significantly impact machine gun fire primarily due to its effects on the ammunition and the operational environment. High humidity levels can introduce moisture into the ammunition, which may affect the primer and propellant, potentially leading to misfires or hangfires. Additionally, the presence of moisture in the air can impact the trajectory of the bullet.

As humidity increases, the density of the air can also change, creating less favorable aerodynamic conditions for the bullet as it travels through the air. These factors can contribute to decreased accuracy, as the path of the bullet may be affected by the additional drag created by the moist air, as well as potential inconsistencies in ignition due to the moisture in the ammunition.

Understanding these effects is critical for operators, as it allows them to anticipate potential changes in their weapon's performance and make necessary adjustments to maintain operational effectiveness.