4 ms·
Yeah, any time somebody says "this thing goes Mach <number>" the first question should be "at what altitude?" and the second should be "for how long?".
by ARandomerDude 4y ago
Yeah, any time somebody says "this thing goes Mach <number>" the first question should be "at what altitude?" and the second should be "for how long?".
- chmod600 4y agoAn AR-15 fires a bullet at Mach 3. Low altitude, maybe a second or so before it's lost a lot of speed.