Originally posted by ODGPBS is an amazing thing isn't it?
First off, the inference you're making isn't sound at all. All sound vibrates... so you're basically arguing that no sound actually meets the speed of sound. Which is dumb. Second, these aren't normal sound waves.The more relevant fact you should have focused on is that shorter barrel you brought up (which led you to rule out the longer-barreled m1 being used). Shorter barrels invariably means lower muzzle velocities.
I never argued that sound doesn't vibrate, I argued that heavier vibrations decrease pressure and slow down the actual sound wave. Quote exactly where I stated that sound with no vibrations = the speed of sound? For Dinah to disintegrate bullets, vibrations need to increase, for vibrations to increase sound waves slow down. That is an actual fact that was brought up by a real physicist.
You're right, I'm going to focus more on the gun.
You're right, shorter barrels DO usually decrease muzzle velocity. but not always. The MP40 that was brought up earlier has a faster muzzle velocity than M1 Thomson despite having a short barrel.
All we know is that it wasn't the M1 due to it's barrel length, I could and probably will go through other Thomson guns but we've ruled out the M1 so far