FBI Ammunition & Ballistics

Question 1

What penetration depth in ballistic gelatin does the FBI require handgun ammunition to achieve for approval?

Accepted Answer

12–18 inches

Answer

6–8 inches

Answer

9–11 inches

Answer

20–24 inches

Question 2

What does 'caliber' refer to when describing a firearm cartridge?

Accepted Answer

The diameter of the bore measured in hundredths of an inch or millimeters

Answer

The weight of the bullet in grains

Answer

The length of the cartridge case

Answer

The muzzle velocity of the projectile

Question 3

What is the primary purpose of hollow point ammunition in law enforcement use?

Accepted Answer

To expand upon impact and limit overpenetration

Answer

To increase bullet velocity beyond supersonic speeds

Answer

To reduce ammunition cost per round

Answer

To improve accuracy at distances beyond 100 yards

Question 4

What does the abbreviation 'FMJ' stand for in ammunition terminology?

Accepted Answer

Full Metal Jacket

Answer

Federal Marksman Jacketed

Answer

Fast Moving Jacketed

Answer

Full Magnum Jacketed

Question 5

What is muzzle velocity?

Accepted Answer

The speed of the bullet as it exits the barrel

Answer

The speed of the bullet when it strikes the target

Answer

The velocity of the firearm's recoil

Answer

The speed of expanding gases inside the chamber

Question 6

In ammunition terminology, what unit is a 'grain' (gr)?

Accepted Answer

A unit of measurement for bullet weight

Answer

The texture classification of gunpowder

Answer

The direction of a barrel's rifling twist

Answer

The material composition rating of the bullet

Question 7

What is 'terminal ballistics'?

Accepted Answer

The study of a projectile's behavior upon striking a target

Answer

The study of how bullets travel through the air

Answer

The study of a bullet's behavior inside the firearm

Answer

The study of ammunition storage and shelf life