What brevity term means no ordnance remaining?

The brevity term "Winchester" is used to indicate that a unit, typically an aircraft, has expended all of its ordnance and has none remaining. This term provides a concise way for pilots and ground forces to communicate their current status regarding munitions, ensuring that all parties involved in the operation are aware of the weapon capabilities available.

Using "Winchester" allows for efficient communication during missions where time is essential, and clarity about resources is crucial for planning further actions or requesting support. The other terms do not carry the same standard meaning in military communication. "Empty" and "Out of ammo" are more informal and do not have the established recognition in military brevity codes that "Winchester" does. "Clear" can refer to a status of safety or readiness, but it does not pertain to ordnance. Therefore, the preferred terminology in this context is "Winchester," effectively signaling that no ordnance is left.