History of Ballistics
Who invented Gunpowder?
China
Bullets are named based on ________ and Length.
Caliber
What are the two categories of firearms?
Handguns and Long Guns
This type of microscope helps compare striation markings from tested bullets to the suspected bullets
Comparison Microscope
What is bigger, an entrance or exit wound?
Exit
What firearm uses a wick to ignite gunpowder?
Matchlock
This type of marking on a casing comes from a blocker that prevents a cartridge from shooting backwards when there is recoil.
Breech-Block Mark (Breech Mark)
If a handgun can be fired with one hand, it is called a _______.
Pistol
This network houses the NIBIS and Drug fire database
NIBIN (National Integrated Ballistics Information Network)
The caliber of a bullet is measured or expressed in millimeters or _______________ of an inch.
Hundredth
What was the name for early weapons due to how they are loaded?(Nickname for matchlock and flintlock guns)
Muzzle-Loaders
Shotgun shells have this piece of plastic inside that helps seal gas and push pellets out in a uniform fashion.
Wad (Wadding)
What are the two groupings of handguns?
Semiautomatic and revolvers
To prevent rust and corrosion, bullets recovered from a bdy should be ________ ________.
Air Dried
This type of bullet is an attachment in Call of Duty to help maximize penetration
FMJ (Full Metal Jacket)
What three things make up gunpowder?
Charcoal, Potassium Nitrate (Salt Peter), and Sulfur
What are the three basic compositions of bullets?
Lead, 1/2 Jacketed, and Jacketed (Copper)
Revolvers have been around since the ____________.
1830s
A common chemical test conducted on GSR to detect the presence of nitrite substances is called what?
Modified Griess Test
What type of gun was used in the JFK assassination?
Carcano 6.5 caliber rifle
Who invented the pistol?
Samuel Colt
Explain in detail how a bullet is fired from a gun.
Firing pin hits primer, primer ignites and causes chemical combustion with propellant (Gunpowder) and that combustion pushes the bullet (Projectile) out of the casing and down the barrel of the firearm.
Shotguns fire small round pellets known as "Shots," but they can also shoot a single projectile known as a ___________.
Slug
What formula/equation uses two reference points to calculate trajectory?
Pythagorean's Theorem
When shot at close range, a person may endure _______ tattooing which looks like a bunch of dotted marks around a bullet wound.
Powder