I've never picked you for a vet/cop Pyro........... But you make some interesting points.....
To the rest of you......... Let's do trivia.............
Slope of the Earth is fixed to 90 degrees, no wind. 2 snipers, 1 holding a bullet, 1 holding a Kate. Kate fires and bullet drops out of hand at the same time......................... Which hits the ground first?
Assuming the rifle muzzle and the dropped bullet are at the same height, and that the rifle's trajectory is perfectly parallel to the earth, and that the earth is flat not round, they would hit the ground at exactly the same time.
I thought that Isaac Newton figured this out hundreds of years ago.
In real life the dropped bullet would hit first though, due to the curvature of the earth giving the fired bullet slightly further to fall.