Everyone knows that Superman is faster than a speeding bullet, but how fast does a speeding bullet travel?

Speeds fluctuate and depend upon several factors.

Gravity makes a projectile fall toward the earth while in flight. The projectile's size, shape,

and the air density affect the speed by which it travels.

Air resistance slows the speed of a bullet and reduces the distance by which it travels.

The velocity of a bullet is given in feet per second (fps) in the United States.

The 0.22 rimfire cartridge, which has a very small powder charge,

sends its bullets on their way at between 370 m/s and 460 m/s.

Cartridges in rifles

-- centerfire cartridges --

propel their bullets at a much faster rate.

The 0.220 Swift, which drives a very small bullet at over 1220 m/s,

is the cartridge with the highest velocity.