There’s something no one has considered: 200yrds, a bullet going super sonic, the impact AND gunshot seem nearly simultaneous.
Sound travels at 1,125 feet per second.
200 yards = 600 feet.
600 feet / 1,125 = 0.53 seconds.
A camera films at 30 frames per second…
If the shot was fired from 200 yards we should have seen at least 10 frames from impact to muzzle blast audio…
Your math is right if Charlie Kirk shot the gun, which he did not.