Firearm Competency Ammunition Types and Ballistics

Question 1

What does the term 'calibre' refer to when describing a firearm or cartridge?

Accepted Answer

The internal diameter of the barrel, typically expressed in millimetres or inches

Answer

The length of the firearm barrel

Answer

The weight of the bullet in grains

Answer

The maximum range of the projectile

Question 2

Which component of a cartridge is responsible for initiating the firing sequence?

Accepted Answer

The primer

Answer

The bullet

Answer

The cartridge case

Answer

The propellant powder

Question 3

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

Accepted Answer

Full Metal Jacket

Answer

Fixed Muzzle Joint

Answer

Flat Metal Jacket

Answer

Forward Motion Jacket

Question 4

What is the primary purpose of the cartridge case in a round of ammunition?

Accepted Answer

To house and protect the primer, propellant, and bullet as a single unit

Answer

To increase the bullet's velocity

Answer

To reduce the recoil felt by the shooter

Answer

To guide the bullet through the barrel rifling

Question 5

Which type of bullet is specifically designed to expand upon impact with a target?

Accepted Answer

Hollow Point (HP)

Answer

Full Metal Jacket (FMJ)

Answer

Armour Piercing (AP)

Answer

Round Nose (RN)

Question 6

What information is typically found on the headstamp of a cartridge?

Accepted Answer

The manufacturer and calibre of the cartridge

Answer

The bullet weight only

Answer

The maximum safe chamber pressure

Answer

The expiry date of the ammunition

Question 7

What is the role of the propellant powder inside a cartridge?

Accepted Answer

To produce rapidly expanding gas that propels the bullet forward

Answer

To lubricate the bullet as it travels down the barrel

Answer

To cool the barrel during rapid fire

Answer

To stabilise the bullet in flight after leaving the muzzle