Module 6 - Ammunition

Question 1

Describe a Primer

Answer 1

It is a small metal cup containing an explosive compound. It is heat and pressure sensitive. When it is struck and explosion occurs.

Question 2

Describe the Powder

Answer 2

The powder burns creating a expansion gasses, which creates a pressure build-up - which will push the bullet down the barrel.

Question 3

Describe the case.

Answer 3

A brass, steel or copper cylinder closed at one end l. Its function is to hold all the other components together.

Question 4

Bullet

Answer 4

Usually made of lead covered with a copper jacket. It leaves the barrel and strikes the target.

Question 5

Explain the cartridge firing sequence.

Answer 5

1. Squeezing the trigger on the firearm will cause the firing pin to strike the primer.
2. The primer explodes sending a flash to the case.
3. The flame ignites the powder.
4. The powder burns creating a pressure build- up behind the bullet.
5. The pressure build-up will push the bullet down the barrel and toward the target.

Question 6

Explain how to identify the calibre of a cartridge.

Answer 6

At the bottom of a cartridge, you will see a headstand. On it you will see the calibre printed for the cartridge.

Question 7

Which is the only component of the cartridge that strikes the target?

Answer 7

The bullet

Question 8

How many lead pellets will you find in a SSG shortgun cartridge?

Answer 8

5

Question 9

What is a hollow point bullet designed to do on impact?

Answer 9

Hollow point or dum dums, are designed to expand on impact causing a large surface wound but less likely to over-penetrate.