What is the primary purpose of a Range Card?

The primary purpose of a Range Card is to prepare and revise details about the gunner's position. This tool is essential for planning and executing effective defensive and offensive operations. A Range Card allows gunners to map out the area around their position, indicating key details such as fields of fire, ranges to specific targets, and reference points.

By detailing this information, the gunner can maximize their effectiveness during engagements, ensuring that they can engage targets accurately while also being aware of their surroundings. Additionally, it facilitates coordination with other units and supports the overall operational plan by providing clear and concise information about the engagement zone. This strategic preparation enhances situational awareness and operational readiness, which are crucial in combat scenarios.

The other options, while they might be relevant in a broader context of military operations, do not align with the primary function of a Range Card. Weapon maintenance schedules, ammunition counts, and enemy troop movements serve different purposes and are documented using other means or forms.