In the audio titled "Bullet_072781," the prominent sound is of a bullet being discharged from a gun. The audio begins with the crisp, sharp, and unmistakable sound of a gun being cocked, with the metallic clang echoing subtly, creating a sense of anticipation. This is immediately followed by a powerful and resonating bang, indicating the bullet's expulsion from the firearm. The audio then captures the bullet's high-speed movement through the air, a whizzing sound that fades into the distance, symbolizing the bullet's trajectory. Lastly, the audio ends with a faint, muted thud, suggesting that the bullet has hit its target, concluding the audio's narrative of the bullet's journey from gun to target.