This suggests that the terminal velocity of a rail gun projectile is around Mach 5: http://www.globalsecurity.org/military/systems/ship/systems/emrg.htm http://

This suggests that the terminal velocity of a rail gun projectile is around Mach 5: http://www.globalsecurity.org/military/systems/ship/systems/emrg.htm http://www.globalsecurity.org/military/systems/ship/systems/... I guess I can spend my time worrying about other things!