Would a Handgun Work in Space?

Fires can't burn in the oxygen-free vacuum of space, but guns can shoot. ... Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required.

Can a bullet reach space?

No, this is not possible. If the bullet had enough speed so that it makes it out of the atmosphere and still has more than escape velocity, then it is on a trajectory leaving earth and not in orbit.

How fast would a bullet travel in space?

If you were to fire a gun in space, what would happen to the bullet? At 9000km altitude, escape velocity is about 7.1km/s. A rifle's muzzle velocity is around 1km/s, so a bullet fired from a stationary position would either be caught in an orbit or eventually fall to Earth, depending on the direction of fire.