Wouldn't it keep dismantling itself? If you managed to get it into the gun it would never fire. The primer would always be in its previous state which would be not fired. Thus, a misfire :)

It would hit someone as arrow in the knee =)

If you fire the bullet, then it will disappear from your current time, and if you came from the direction you fired from in the past then you will die in your past since the bullet will hit you, so you will not be able to fire the bullet in the first place, so you will never be able to fire the bullet even though you died, creating a paradox.

When you'd shoot a bullet backwards in time it would be like rainbows everywhere, but without music as both the rainbows and the bullet travel much faster than sound waves. But don't worry, there's a simple workaround: To receive the full pleasure with all rainbows and nice music I suggest you shoot the bullet sidewards in time. Simple as that.

Well I'm guessing you have an amazing time gun that actually shoots bullet back in time and not just reversing the time of a bullet you already fired so you would end up shooting a bullet that hits someone where they were before. So say a man was standing in a spot a couple of minutes ago and when he left you shot a bullet and the bullet went back in time and hit him so you would end up changing the world because that man was shot creating a whole new reality in which you would not have shot the bullet but instead you just witnessed a man get shot from nowhere.

Am I the only one who read the question with Morgan Freeman's voice?

ERROR

Insufficient computational power, insufficient data, missing variables.

System failed!

ERROR

Rebooting system...

Insufficient computational power, insufficient data, missing variables.

System failed!

ERROR

Diagnosing the cause of error...

Unsolvable equation.

Missing variables!

• endless trajectory of bullet - Turned ON/OFF
• Speed of bullet - Set to X km/h
• Velocity - Set to X fps
• Friction of air - Turned ON/OFF
• Gravity - Turned ON/OFF
• Speed of curving of space - set to X minutes per 1 mm
• Avoiding living targets - Turned ON/OFF

Error

System failed.

Result of equatation: Basing on Schroedinger's Cat Paradox the results are "endless possibilities" with equal probability.

Stray bullet maybe? xD

There wouldn't be a bullet nor a gun anymore :P

Then you would only need that one bullet, and nothing else, as the gun would pretty much reload itself every time you shoot it. You just discovered infinite ammunition, and although I don't want to be the obnoxious "idea guy", I think it would be great for a game idea.

If the bullet travels back in time, then the bullet will have always been there. You merely put a gun around it.

It would hit you if you're not careful!

Assuming it begins going back in time once you shoot it, it would travel to it's origins where it was created and disintegrate.
If the bullet would only go back in time until the point of it being shot, it would never even move, because as soon as you shot it, it would return back to not being shot.

you'll die. Simple

You would shoot someone, and hit their father's nuts.

No way to know without more variables. What are you shooting it at? How far back in time is it expected to go?

like a rolling stone

YOu can easily try it out. Timezones, yo.

I don't know what's going on so purupuru

If only the bullet is traveling backwards in time then it should shot things/persons which were in that place, over and over again.Good luck everyone!

The bullet would become a unicorn and stab Hitler with its horn

I think if you shot it backwards in time, you might alter history if it hits someone important.

you know how that would be? physically impossible... aaand awesome :D

Can't believe nobody else thought of this. Bullet fires at the one minute mark, keep watching...

Same thing that happends when you divide by zero --