If I shot a bullet that travels backwards in time, what would it be like?

You would hit Gabe Newell of 20 years ago so we wouldn't have steam and stimgifts. BUT since you shot the projectile FROM steamgifts that would be a paradox and so the bullet will just keep going in the direction of Gabe without hitting him just as the Achille's Paradox (by Zeno) otherwise our universe would collapse. Now I might flash you with a mib gadget and stuff but only when you'll give the key away, I don't want you to lose memory of that.

The Bullet would keep moving forward while time went back until it hit something, or until it lost it' momentum and dropped to the floor at some moment in the past at that location.

Okay so I already covered the bullet traveling backwards into the barrel of the gun from your perspective. Now let's talk about what a few others have mentioned: wormholes. You could fire the gun normally and the bullet would enter a wormhole which exits to the past on the other end. But here's the weird thing: let's say positioned at the other end of the wormhole is a man in the past. The bullet strikes him and the information about this event is recorded and saved to be given to you in the present so that you already know before firing the gun that the bullet hit him. Knowing the bullet strikes this man, you then compassionately decide not to fire the gun.

Error! Does not compute. :D

The bullet will hit the person that was last on the position against your shooting.

Wait, that was you? You son of a bitch. My grandfather got killed by that before he could conceive my father. It took me the better part of a subjective century to untangle that one.

I've already set things up so I'll receive your personal info a while ago. I don't know if you'll still be able to post this before the time police shows up, but if not, I guess you'll never read this. Enjoy extratemporal prison, creep.

As it travels back through time, it also travels ahead through space. So ensure you don't fire it in the direction you came from, or it's gonna hit you, kill you before you fire it, and cause one of those pesky temporal paradoxes that tend to make the whole universe implode.

Just point it toward Braunau am Inn, making sure you shoot at the right moment so it gets there on 20 April 1889.

Weird shit would happen. And your post reminded me of a sci-fi novel by Philip K. Dick: Counter-Clock World

From wiki: "The novel describes a future in which time has started to move in reverse, resulting in the dead reviving in their own graves ("old-birth"), living their lives in reverse, eventually ending in returning to the womb, and splitting into an egg and a sperm during copulation between a recipient woman and a man."

wut

Read Final Crisis (DC Comics). It answers your question.

Hmmmm, it would probably kill someone important who is at the same spot as you since it travels backwards in time.

Bulletception
The bullet goes backs in time, there will be another copy of that bullet.
And then, everyone dies.
The end

Einstein will appear from the warp and hump your arse because you don't know even primitive physical laws.

Does the bullet go back in time after firing it?

I guess it would be like that begining sequence in the movie lord of war but in reverse.

You could assassinate people by shooting at where they were standing previously. Unstoppable, really. For example to assassinate the president, you would go a place where he gave a speech in the past, and shoot at the spot he was standing. The bullet, travelling back in time, would then hit the president in the past.

However, since that means the president is now dead, you have no reason anymore to shoot him. But if you don't shoot, he's not dead. So you have to shoot. But if you shoot, he's dead already, so there's no point in shooting. But if you don't....

You can't, if you shot it, it could change the past and make your life diffrent, then it couldn't happen.

Talk about the "Shot Heard 'Round the World."

a bullet that travels backwards in time will go back into the gun it was fired from THE END the gun will just fire but no bullet because it will be always in the gun it was fired from meaning inf ammo :P it would have just flames.

We have a lot of assumptions here. First, lets assume that time travel is possible, and that we can control it to such a degree that we can send specific items through it to appear without the aid of another time traveling device on the other end. In order for anything to travel in time, it would most likely have to be removed from our physical dimension, a lot like neutrinos that do not interact much, it at all with the physical world. Said object would then have to be re-introduced some how back into its physical state which requires a lot of energy since matter nor energy can be created or destroyed from nothing. So lets assume that all of the above is fixed. We would then need to calculate the EXACT spot that not only you and your objective were, but that also requires to know the exact location in space/the universe of where the earth/solar system/galaxy etc were. Even if we took every computing device and had them calculate this information together, it would take hundreds of years or more, and thats IF we knew of some central none moving object in space as a universal reference point.

This is what I think. (This is my logical thought) Let us go through time forwards first. You take the cartridge out of where you store it, load the magazine, then the gun shoots the bullet. If you went backwards in time only, it would stay in the same space, and if it was a fairly short back in time then the bullet that was fired would appear in behind you a fair bit. (The earth and you rotated, but the bullet has stayed in the same place.

Honestly though, I think bad bad things would happen. Really bad things. Like, the gun would explode because guns are not built for time traveling bullets.

It couldn't happen, because you fire a bullet with your gun. And since it needs to be in the gun before you fire it, going back in time would only find it sitting in the gun, doing nothing.

It would probably be a Chrono Trigger

Even if you could shot this bullet, Han shot first.

It would travel back in time into your gun.

You would shoot a bullet back in time, it would hit yourself in the face because it travels back in time, which means it is going back into the gun that shot it. But the gun isn't there anymore because it travels back in time. #MindBlown #Literally