At the moment Lin Tian was distracted and turned his head, Ghost and Thunder Wolf decisively pulled their triggers, and the bullets were fired almost simultaneously.
How fast does a military assault rifle bullet travel? Almost everyone on the practice field knew that bullet muzzle velocity could reach up to 700 to 1000 meters per second, while the speed of sound was 340 meters per second.
Even at an average speed, an assault rifle's bullet travels at supersonic speeds. The bullet travels much faster than sound, which means by the time you hear the gunfire, the body has already been hit. Even pistol bullets fly at subsonic speeds.
The martial arts masters in TV shows, who can dodge bullets while having their back to the shooter, are just nonsense. No matter how sharp their hearing might be, it's of no use because the bullet flies faster than sound. You would have to see someone pull the trigger to dodge in advance.