How fast can the initial velocity of the bullet be?

The longest range can reach about 2000 meters (anti-aircraft machine guns and active large-caliber sniper rifles), and the maximum initial velocity is about1200m/s.

The bullet speed of different guns:

Shotgun: about 200m/s-300m, up to 400m/s.

Pistol: 300-450m/s

Rifle bullets: 700-850m/s

Caliber rifle bullets: 860-970 m/s.

At present, no sniper rifle in the world can exceed the initial velocity of1000 m/s.

Extended data:

The muzzle velocity is determined by the gas expansion rate produced by propellant combustion when the weapon is launched. The muzzle velocity is an important index to measure the technical performance of shooting weapons. For the same warhead, the greater the initial velocity, the farther the flight distance, the greater the kinetic energy and the shorter the time to reach the target.

In general artillery or cannon, the factors that affect the muzzle velocity are: the caliber of the artillery, the mass of the projectile, the mass of the powder, the particle size or shape of the powder, and the friction between the projectile and the running tube.

Generally speaking, the muzzle velocity of small caliber weapons is relatively high, but it is not absolute. For example, the muzzle velocity of M2HB with a caliber of 12.7mm is about 930m/s, that of M4 with a caliber of 5.56mm is only 900m, that of AK74U as a short barrel rifle is only 730m/s ... The muzzle velocity of Ak47 is 7 10/0m/s, and that of Garland semi-automatic rifle is 865m/s..

References:

Baidu Encyclopedia-Chusu