Muzzle velocity is the speed a projectile has at the moment it leaves the muzzle of the gun. Muzzle velocities range from approximately 400 ft/s (120 m/s) to 1,200 ft/s (370 m/s) in black powder muskets, to more than 4,000 ft/s (1,200 m/s) in modern rifles with high-performance cartridges such as the . 220 Swift and .

What is gun muzzle velocity?

Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle).

What does muzzle velocity affect?

Generally speaking, a higher muzzle velocity correlates to a flatter trajectory, meaning there is less bullet drop over a given distance when the velocity of a projectile is increased.