What is muzzle velocity and speed have to do with eachother?
Your question is unclear so please allow me to explain the difference between speed and energy. Velocity and speed are essentially the same. A gun’s MUZZLE VELOCITY is the SPEED at which the projectile leaves the muzzle of the firearm. Muzzle velocities range upwards from a few hundred ft./sec. A gun’s MUZZLE ENERGY is the KINETIC ENERGY of a bullet as it is expelled from the muzzle of the firearm. (an indication of the destructive potential of a given load). A 22LR develops 100 ft/lbs. of energy, a 9mm develops 350 ft/lbs/ of energy, and a .357 Mag develops 550 ft. lbs/. The heavier the bullet and the faster it moves, the higher its muzzle energy and the more damage it will inflict when it contacts its target. Muzzle speed and muzzle energy are always greatest at the firearm’s muzzle and falls off with distance.
