Originally Posted by marcwagz
they are the right shape, but they don't actually shoot anything so how on earth can you tell if you are moving fast enough?
This isn't something you can try with real equipment. That could lead to a very broken finger of the "shooter".
These drills are done so you can have the movement in muscle memory. Having someone pull the trigger in a drill only tests you against that person, plus unless you are using paintball guns (very unrealistic) or Simunition it will only be a guessing game as to where the gun was when the trigger was pulled anyway.
If you are ever in one of these situations, you can only pray that you move fast enough for the shot to miss, or at a minimum hit nothing vital.