The speed of a bullet will depend on: the type of rifle used to fire it, the type of bullet it self and the Air resistance. A bullet’s velocity is given in feet per second (fps), Shotgun pellets vary in velocity, the slowest recorded speed is 335 m/s, while the fastest travel recorded is at close to 427 m/s. The 0.22 rim fire cartridge sends its bullets on their way at between 370 m/s and 460 m/s. Cartridges in rifles -- centerfield cartridges -- propel their bullets at a much faster rate. The 0.220 Swift, drives it’s bullet at over 1220 m/s, is the cartridge with the highest velocity.