In this prior post, I announced that I got everything right, only to find out that I was still wrong regarding analysis of a “water-tower shooter” at the Butler Rally for Trump. Here is the correct version:
The yellow-bracketed path is initial bullet travel before the shock wave travels 218 feet to the microphone. I used 800 feet as a distance from top-of-water-tower down to podium, and 3,240 feet per second (fps) as the initial muzzle velocity. I incorporated bullet deceleration so that the average bullet speed over the first 712 feet is 3,050 fps.
The final velocity at that point in time — where there is a shock wave that emanates out from the bullet path at the angle made by the orange line which is 218-feet long — is 2860 fps which, when using the speed of sound that day (when temperature was 91 degrees F), ends up being Mach 2.48 (about 2.5 times the speed of sound).
That Mach Number produces a Mach Angle of 23.8 degrees. For a microphone offset from the podium by 200 feet, you’d hear the bullet snap first, and then — 271 milliseconds (ms) later — you hear the sound of the muzzle pop (or muzzle blast). Mike Adams found an audio signature where there was a “snap … pop” delay of 366 ms.
In this next installment, I produce parameters which could explain that. In other words, I show you how fast the bullet travels, and how far away the microphone is, in order to obtain a “snap … pop” delay of approximately 366 ms, which purportedly came from a shooter on top of the water tower.