Ballistics

In 1784, someone shot a sniper pistol and hit the Edward Cool Show. At that time, there were no bullets. Gunpowder and ammunition entered the muzzle and filled with paper. A spark that occurred when a gun hammer struck a part of the flint at the back end of the barrel ignited the powder. When the police looked at the wounds of the show, he found a newspaper being used as a filler to put the powder in the murderer's gun. The main suspect in the murder case was a man named John Thomas.

Ballisticology has three aspects: internal ballistics, external ballistics and terminal ballistics. Interior ballistic refers to what happens inside a firearm during bullet firing and after firing, before the bullet leaves the muzzle. By choosing the best weight and design of the bullet and adjusting the bullet's speed accordingly, the manual loading process can achieve higher accuracy and accuracy by increasing manufacturing consistency. When you reload each cartridge, you can carefully tailor each component to the remaining cartridges in the batch. The brass housing is made of a material selected from the group consisting of volume, weight and concentricity, weight and design of the bullet, weight and type of powder, amount of shell filling (amount of total available capacity filled with filler) It can be matched by function of package package

Ballistics or ballistic software using the G1 drag model introduced in 1881 based on the Mayevski / Siacci method is the most common way to handle external ballistics. Ballistics is represented by ballistic coefficient (BC) which is a combination of ballistic coefficient, ie bullet-shaped air resistance (resistance coefficient) and its cross section density (function of mass and bullet diameter). Projectiles of mass m, velocity v, diameter d undergo a decrease in drag proportional to 1 / BC, 1 / m, v 2 and d 2. BC gives the ratio of ballistic efficiency to standard G1 projectile The standard G1 projectile is a fictitious projectile with a flat bottom with a length of 3.28 caliber / diameter and a tangent curve of 2 caliber / diameter radius at that point. The G1 standard projectile was born out of the "C" standard reference projectile defined in 1881 by German steel, ammunition and weapons maker Krupp. The BC of the G1 model standard projectile is 1.

External ballistics or external ballisticology is part of ballistic science and is used to deal with the behavior of the projectile during flight. The projectile can fly in powered or unpowered, induced or uninduced, rotated or fin stabilized, in the atmosphere or in a vacuum in space, but for the most part under the influence of the gravitational field I have to fly. The projectile that fires the projectile may not be powered and all the speed until the projectile leaves the barrel comes from the ignition of the propellant. However, the external ballistic analysis also includes the orbit of the rocket-assisted launch projectile and the launch vehicle, and regardless of whether the rocket is increasing or not, its all trajectory velocity from its internal ballistic system (rocket engine or aspiration engine) obtain. The pressure phase after the motor burns is still. External trauma also includes free flying of other projectiles such as balls, arrows.