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Interior ballistics is the branch of the science that deals with the projectile while it is still in the gun. 2. Transitional ballistics is the branch of the science that deals with the motion of the projectile from the time it leaves the muzzle until the only forces acting upon it are due to exterior ballistics. 3.

Forensic ballistics involves the examination of evidence from firearms that may have been used in a crime. When a bullet is fired from a gun, the gun leaves microscopic marks on the bullet and cartridge case. These marks are like ballistic fingerprints.Cartridge cases are compared in the same way.

Four categories of ballistics include internal, transitional, external, and terminal ballistics. Internal ballistics depicts the event occurring from the time of the propellant's ignition until it reaches the end of the gun barrel.

Here are five tools that are essential for every investigator as they conduct crime scene reconstruction.Bright String.Trajectory Rods.Protractors.Angle Measuring Tool.Laser.More About the Expert.Jun 16, 2015

Cartridge: A unit of ammunition, made up of a cartridge case, primer, powder, and bullet. Also called a "round", or load. Sometimes incorrectly called a bullet. Cartridge case: The container for all the other components that comprise a cartridge. Sometimes incorrectly called a shell, shell casing, brass, or a hull.

At the time of purchase, the code or serial number would be recorded along with the purchaser's information by a licensed dealer. Later, when a bullet or cartridge case is found at a crime scene, the bullet or spent cartridge could be quickly traced back to the purchaser.

Stereo microscopes are used to determine basic class characteristics of fired bullets, bullet fragments and cartridge/shotshell cases. A comparison microscope is used for the examination of fired bullets, bullet fragments and cartridge/shotshell cases.