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

Well it wouldn't matter cuz the bullet wouldn't be real cuz our eyes aren't real.

It depends on the time travel rate. If it travelled 2 years back per meter you would hit the first obstacle that was there 2 years ago in the firt meter, 4 years in the second and so on.

Time would go backwards the moment you pulled the trigger.

Its a trap! You'd be dead from the bullet you shot on the previous timeline :X

Id would be the only weapon capable of killing Tim.

The question is what happens if you walk backwards and after few meters you shot, will the bullet go backwards in time to the moment before you moved backwards and hit you in the back?

The bullet would travel back in time however people might sense that its there it might even break someones skin or make a hole on the inside of them as it materialized but then almost in the same instant it would move back in time and that person wouldn't be there and the bullet would continue on following the curvature of the earth until it lost all momentum and came to a stop where it would continue progressing back in time until it reaches the point where time ceases to exist or if time has always existed it would never stop going back or if time is like futurama's version it would loop back around through existence hitting you in the hand he moment after you pull the trigger at least for the first loop the second time it would go ten feet over your head.

.... time travel doesn't work. Time is created by humans it does not exist in that kind of form in the universe.

Depends on how you see time travel. You can see it as stepping backward by milisecond intervals, or you can say, you are there, in the second case it would hit the thing you are aiming at when it stopped travelling back. In the first case, it would stop in the first object in its path. When it hits something it shoud loose "speed" so it would stop in the first (maybe second) object it hit. Plus you shoud consider if the bullet is travelling backward in time at the same time as it is travelling forward in "space"(i mean normal travelling, like in air).

on that last sentence i had an idea. as soon as you pull the trigger, the bullet starts goung back, because your hand is shaking the gun barrel wouldn't stop the bullet? or the bullet itself wouldn't stop itself when it goes back in time, materializes, and it would be in itself.

or something like that.

It will stop mid-air (freeze in time) at first, just for a moment while time starts to reverse (You can't just go from full speed to reverse without slowing down and stopping). After it has stopped, you will soon see the bullet "fall apart", but if you look closely, you can see that it's actually just all components detatching. If you look in slow motion (Even some phones can record in slow motion now, so there's no longer any excuse not to) you can even see the poor workers putting the bullet together, earning practically nothing, in reverse, of course.
After the bullet has returned to its original state of natural elements and alloys, the materials will scatter to its origins, all over the world, so beware. If you stand in the way, which you probably will do, it'll probably kill you in the process.

It'll hit you so you die the end

gonna skip this one too lazy to think at 1AM

depends on whether or not the doctor is involved. if so then it gets all timey wimey.

Haven't read the rest, but here's my theory:

You shoot the bullet, and as it moves forward in space, it moves backwards in time.
So 0.1 s earlier, it's a certain distance further.

This means, in normal timeflow the bullet will fly from it's destination backwards into the gun at the moment you shoot it.
All this time the bullet is in the gun as well, and the moment you shoot both will dissapear (as they don't exist anymore in the future, only the past)

Some might say that the dissapearance of the bullets can't happen because physics, but then again a bullet moving backwards in time can't happen either. So we need to break some laws of physics to come up with a theory about the result.

Lol, randomly found this episode from Heroes.
Check near the time 27:50. Is this the true answer?

It would move until it stops.