GSI GSI Ammunition & Ballistics

Question 1

What does the term 'caliber' refer to when describing ammunition?

Accepted Answer

The diameter of the bullet or bore in inches or millimeters

Answer

The weight of the bullet in grains

Answer

The length of the cartridge case

Answer

The amount of powder charge in the cartridge

Question 2

Which component of a cartridge contains the chemical compound that ignites the propellant powder?

Accepted Answer

Primer

Answer

Bullet

Answer

Case

Answer

Wad

Question 3

What is the term for the distance a bullet travels from the muzzle to the target?

Accepted Answer

Range

Answer

Trajectory

Answer

Muzzle velocity

Answer

Ballistic coefficient

Question 4

Which type of bullet construction is most commonly recommended for personal defense due to controlled expansion?

Accepted Answer

Hollow point (HP)

Answer

Full metal jacket (FMJ)

Answer

Round nose lead (RNL)

Answer

Wadcutter

Question 5

What does 'muzzle velocity' measure?

Accepted Answer

The speed of the bullet as it exits the barrel

Answer

The rotational spin of the bullet

Answer

The recoil energy felt by the shooter

Answer

The pressure generated inside the chamber

Question 6

What is the purpose of the crimp on a completed cartridge?

Accepted Answer

To secure the bullet in the case mouth and ensure consistent powder ignition

Answer

To seal the primer in place

Answer

To add weight to the projectile

Answer

To mark the caliber designation