Forensic Ballistics Review Questions 7
1. The area around the firing pin which is against the head of the
cartridge or shotshell during firing.
C. Breech face
2. Lead or steel pellets ranging in size from .20" to .36" diameter
normally loaded in shotshells.
3. The projectile.
4. The discolored area on the immediate periphery of a bullet hole
caused by bullet lubricant, lead, smoke, bore debris or
A. Bullet Wipe
B. Bullet Mark
C. Bullet Striation
D. Bullet Sign
5. The potion of the gun that is held or shouldered.
6. The Diameter of the Bore measured from land to land usually
expressed in hundredths of an inch or in millimeters.
7. A Groove around the circumference of a bullet or cartridge case.
8. A Unit of Ammunition, made up of a cartridge case, primer,
powder, and bullet.
9. The container for all the other components that comprise
C. Cartridge Case
10. The Cartridge contains the primer in the center of the case
head or base where it can be struck by the firing pin of the
B. Firing pin impression
1. Different Shapes of bullet according to purpose:
1) Round Nose - the end of the bullet is blunted.
2) Hollow point - there is a hole in the bullet that creates
expansion when a target is struck, creating more damage.
3) Jacketed - the soft lead is surrounded by another metal,
usually copper, that allows the bullet to penetrate a target
4) Wadcutter - the front of the bullet is flattened.
5) Semi-Wadcutter - intermediate between round-nose
2. Bullet - sometimes incorrectly called a slug or round.
3. Three Uses of cannelure
4. A Cartridge Case is sometimes incorrectly called a shell,
shell casing brass, or a hull.
5. A Cartridge is also called a round or load.Sometimes
incorrectly called a bullet