I think she meant a bullet fired straight downwards.
I'm not sure I agree though Lizzie. The fired bullet would have a higher initial velocity, and therefore not be subject to the acceleration delay the other bullet would encounter in attaining terminal velocity. The resultant deceleration of the fired bullet (assuming a muzzle velocity greater than terminal), may also factor in?
Now, if the bullet was dropped by say, a migratory swallow instead of a hand, it may be a completely different outcome....