In movies, a special “ringtone” bullet sound is used to convey the shot. But in real life this is not always possible.
In reality, bullets can only “ring” when they hit some kind of solid object and are fired from it at a fairly small angle. Therefore, they spin very quickly in flight, making a characteristic ringing sound.
This effect was used so often in movies and various TV shows that in real life we involuntarily expect the same “ringing” from bullets.