Chapter 11 Ballistics

3. abbreviation for the Bullet Identification System that hold records of ballistic markings of firearms used in previous crimes
6. the volatile compound that ignites when struck by the firing pin of a gun; it detonates the propellant in the cartridge
8. term used for a weapon, such as a gun, capable of firing a projectile using a confined explosive
9. group of people credited for first inventing gunpowder over a thousand years ago
10. the number of reference points needed to calculate the trajectory of a bullet
11. this side of a bullet wound tends to be smaller than the other
12. this type of weapon is considered the first firearm; it used a wick to ignite the gunpowder
15. a metal block that closes the opening at the back part of a rifle or gun barrel; this prevents a cartridge from shooting backwards towards a user as it recoils
16. muzzle-loaders were replaced by these firearms with the advent of the cartridge
18. term for a pistol that holds several cartridges that can be fired one after another
21. name of the FBI database that holds data on cartridge casings
22. term for the grooves cut in a spiral down the barrel of a firearm

1. term for the propellant in a weapon
2. a case that holds a bullet, a small amount of exploding primer powder, and the gunpowder; also called a round
4. The scientific analysis of firearms, bullets, and the travel of projectiles in flight
5. term for the projectile propelled from a firearm
7. the maximum number of hours after a gun is fired that detectives can collect reliable GSR evidence
13. term which refers to the diameter of the bullet
14. term used to describe the path of a propelled bullet
17. category of modern firearms which can be fired with one hand
19. this type of gun should never be submitted to the laboratory for evidence.
20. factor causing a bullet's path to be slightly curved, especially when shot from long distances
23. category of modern firearms which includes rifles and shotguns; these guns require two hands for accurate shooting