[QUOTE=chevvron;10562416]
All these films you see where someone is hit by a bullet . . . all you hear is the bullet striking . . . ; the bullet has to be supersonic[/ quote]
Yes
so you would hear the shockwave as it hits the target.
No. As the bullet is super sonic it follows that of would impact before the sonic wave.
The correct sequence would be a soft squelchy splat, the crack as the sound wave from the bullet catches up followed by the bang of it being fired.
Watching an A10 as quite spooky. We could see the eruption from the shell strike, the ripple banks as the impact noise arrived followed by the winding whoosh of the cannon firing. As we were off the firing line we didn't hear the flight noise.