In the event of an emergency at the range, what is the RSO's first action?

The first action of the Range Safety Officer (RSO) in the event of an emergency should be to alert all shooters to stop shooting. This is crucial because it ensures the immediate safety of all participants on the range. By halting all shooting activities, the RSO can concentrate on evaluating the emergency and determining the best course of action without the added risk of live firing continuing.

Stopping all activities allows for a controlled environment where responses can be coordinated more effectively. It minimizes the potential for further injuries or accidents and keeps the area secure while the situation is assessed. After ensuring that all shooters have ceased fire, the RSO can then proceed with other necessary actions, such as calling for help or evacuating the range if needed. Overall, prioritizing safety in a moment of crisis is paramount, and this action directly addresses that need.