If that bullet is the longer, heavier AK bullet, which only begins tumbling at depths of greater than 20 centimeters, it will travel through your body relatively hydrodynamically, its point mostly forward, like a professional diver entering a pool with little splash. If that bullet is from an AR-15, however, the bullet will begin tumbling at around 11 centimeters, like an out-of-control race car spinning as it moves forward along the track. By around 18 centimeters, the bullet will be at full yaw, tilted 180 degrees, doing a belly flop into the pool of fluids inside your body. Here, the bullet
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