I really got a kick out of this. Supersonic shock waves videoed in super slow motion, in both supersonic bullet speeds, and subsonic speeds. 50 cal vs 300 black out. You can also see powder particles emitted from the muzzle with attached shock waves, and a curious area of turbulence left behind the bullet path, also obvious is the yaw on the subsonic bullet. Really interesting video, and the best part is they plan to do more on the subject. Hope you enjoy!