Supersonic crack of a 308

Upon entering a gel or fluid the petals fold back from the base greatly increasing the diameter of the wound channel. Keep in mind that the feet per second calculation is from the muzzle, not down range. The unsuppressed muzzle signature in the upper image is even louder than the bullet sonic crack preceding it. A bullet that breaks the sound barrier will leave a distinct loud crack. The reason why a whip has a crack, is because the end of the whip. The ballistic crack is being produced as long as the projectile is traveling at a velocity greater than the speed of sound. I look for pressure signs by checking my cartridge and the primer. Atomic match ammo 308 winchester subsonic 175 grain sierra. Supersonic and subsonic cracks downrange, listen kcdustremover. I run some bullets over a chronograph to see roughly what velocity they were giving a supersonic crack. If the crack were given off only at the transition to supersonic, a suppressor would quiet it since the bullet is traveling at a supersonic velocity before it leaves the suppressor. A full power super sonic 308 win round will have about 6. Because the supersonic crack is traveling with the bullet, it cant be localized. Supersonic means the projectile breaks the sound barrier, which produces a mini sonic boom, or a sonic crack.

A bolt action rifle was used for shooting subsonic. Supersonic and subsonic cracks downrange, listen youtube. I dont think its a scale that shows that the bullet diameter is directly related to the noise shooting a 17 mach 4 doesnt seem any louder than a 17 hrm when shot though one of my cans and the same goes for shooting my 308 to a 300 win. However that same can is great with supersonic ammo as well including on my. The bullet has slowed a bit by the time it passes the microphone. If you dont know the physics, a bullet traveling faster than. Supersonic trident ammunition features a unique one hundred percent copper petaled design which gives it the ability to not only penetrate deep into a target but also expand to up to 3 times its original size. Silencer guide with decibel level testing the lodge at. No flattened primers, no dimpled primers, no bulging cases. No type of suppressor can reduce the supersonic crack of a bullet flying at supersonic speed.