It is the science that deals with the motion, behavior, and effects of projectiles, especially bullets, gravity bombs, rockets, or the like; the scienceor art of designing and hurling projectiles so as to achieve a desiredperformance.

The study of the processes originally accelerating the projectile, for example the passage of a bullet through the barrel of a rifle

The study of the passage of the projectile through space or the air

a gigantic bow or catapult which was used to hurl large objects such as stones at a particular distance to deter animals or enemy forces.

He made the first attempt to measure the pressure generated by gun powder. The account of his experiments was the most important contribution to interior ballistics that had been made up to that time.

He conducted many experiments in interior ballistics. His findings justly entitle him to be called the father of modern gunnery.

The ratio of the weight of a given volume of powder vs. the weight of the same volume of water.

The amount of work required to raise one pound one foot high against the force of gravity.

Occurs when a cartridge fails to explode on time or delayed in firing.

The equal and opposite reaction of the gun against the forward movement of the bullet during the explosions.

The unstable rotating motion of a bullet.

He claimed that no part of the path of a projectile could be a straight line and that the greater the velocity of the projectile the flatter its path.

The ballistic pendulum was developed about 1743 by 

The noise created at the muzzle point of the gun due to the sudden escape of the expanding gas coming in contact with the air in the surrounding atmos­phere at the muzzle point.

The actual curved path of the bullet during its flight from the gun muzzle to the target.  The following are the kinds of trajectory: straight horizontal line -parabola-like flight - vertical drop

Rate of speed of the bullet per unit of time.

Depth of entry on target.

He wrote an article entitled  “The Missile and the Weapon”, which dealt with a variety of issues to include how measurement of land and groove markings are made on bullets.  He also discussed the examination of gun powder residues in barrels of firearms and the changes that take place overtime after the weapon is fired.

Published a thesis titled ‘Les Plaies Feu Courtes’. His thesis dealt with the subject of wounds made by small firearms.

The maximum distance at which a particular gun and cartridges will consistently place all shots in the standard target for that distance.

The distance within which the shooter has control of his shots.

The means that the bullet may lose its speed very rapidly during its flight the air. This is a number that relates to the effect of air drag on the bullet's flight and which can be used to later predict a bullet's trajectory under different circumstances through what are called "drag tables." 

This is the area of the bullet's path where it neither rises nor falls greater than the dimension specified. Most shooters set this as ± 3" to 4" from the line of sight, although other dimensions are sometimes used. The measurement is usually based on one-half of the vital zone of the usual target. Typical vital zones diameters are often given as: 3" to 4" for small game, and 6" to8" for big game and anti-personnel use.

The farthest distance that a projectile can be propelled from a firearm.

This is the maximum height of the projectile's path above the line of sight for a given point of impact and occurs somewhat past the halfway point to the zero range and it is determined by your zeroing range.

The bouncing off or deflection of a bullet from its original trajectory (normal path) after striking a resistant surface.

When the diameter of a barrel of a shotgun is the same throughout the bore, it is called 

Shot gun pellets made from lead especially hardened by the addition of a slight amount of antimony.

It is an open wound produced by the penetration of bullet slug within the tissues of the body. The bullet which was pro­pelled from the gun as well as the flame from the heated expanded gases in short range fire is the one that produces injury.

Caused by the flame or hot gases not by the hot projectiles as is commonly believed.  It is also known as burning or charring.