When should a Range Card be prepared by the gunner?

The preparation of a Range Card is crucial for effective machine gun operation and should be conducted as soon as the gunner occupies the position. This timing allows the gunner to assess the terrain, identify key targets, and map out effective firing zones. By creating the Range Card immediately upon taking position, the gunner can ensure that they have a clear understanding of the distances to various reference points, which is essential for precision in firing and for coordination with other elements.

Additionally, preparing the Range Card before engaging in combat allows for a comprehensive tactical overview, enabling the gunner to quickly respond to threats and direct fire effectively. It's also an important aspect of situational awareness, as it aids in planning for unforeseen scenarios. If the Range Card were prepared later in the engagement process, critical details could be missed, and the gunner might not utilize their weapon system to its fullest potential.