Which of the following is NOT one of the general weapons safety rules?

The principle that governs the third option, which states "Always check ammunition before firing," is typically considered a fundamental practice but is not classified as one of the general weapons safety rules. The primary safety rules focus on handling firearms in a way that minimizes the risk of accidents.

The first rule emphasizes the importance of keeping the finger off the trigger until you are ready to fire, which prevents accidental discharges. The second rule addresses the responsibility of not pointing the weapon at anything that is not intended to be shot, thereby reducing the risk to oneself and others. The fourth rule reinforces the idea that every weapon should be treated as if it is loaded, ensuring that users maintain a cautious and respectful approach to firearm safety.

In essence, while checking the ammunition is crucial for safe firearm operation, it is typically seen as an additional procedure rather than a general rule of weapon safety. Therefore, recognizing the focus of the general weapons safety rules clarifies why the third option stands apart from the others.