Firearm Competency Ammunition Types and Ballistics 3

Question 1

What should a responsible firearm owner do immediately upon discovering that they have obtained the wrong calibre of ammunition for their firearm?

Accepted Answer

Store the ammunition safely and exchange or return it without attempting to use it

Answer

Attempt to fire one round to confirm the mismatch

Answer

Force the cartridge into the chamber manually

Answer

Remove the bullet from the cartridge and discard the case

Question 2

Why is it dangerous to fire overpressure (+P or +P+) ammunition in a firearm not rated for it?

Accepted Answer

The higher chamber pressure can exceed the firearm's structural limits, risking catastrophic failure

Answer

It will cause the rifling to wear out faster

Answer

It reduces accuracy at long range

Answer

It causes excessive fouling in the barrel

Question 3

What is the recommended practice when storing ammunition at home in South Africa?

Accepted Answer

Keep ammunition in a cool, dry, locked storage facility separate from the firearm

Answer

Store ammunition in the same locked container as the loaded firearm

Answer

Store ammunition in the refrigerator to preserve it

Answer

Leave ammunition loose in a bedside drawer for quick access

Question 4

What is the effect of barrel rifling on a bullet in flight?

Accepted Answer

It causes the bullet to spin, which gyroscopically stabilises it for improved accuracy

Answer

It slows the bullet down to improve accuracy

Answer

It flattens the bullet trajectory over long distances

Answer

It reduces the noise produced when the firearm is fired

Question 5

Which of the following best describes 'stopping power' in the context of ammunition selection?

Accepted Answer

The relative ability of a round to incapacitate a threat quickly

Answer

The ability of the bullet to travel the greatest distance

Answer

The ability of the bullet to penetrate the thickest materials

Answer

The loudness of the report produced when the firearm is fired

Question 6

What is a key reason why old, corroded, or damp ammunition should never be used?

Accepted Answer

It may cause a misfire, hangfire, or dangerous pressure spike leading to injury

Answer

It will permanently damage the firearm's finish

Answer

It produces more noise than standard ammunition

Answer

It reduces the magazine capacity of a semi-automatic firearm

Question 7

A competent person buying ammunition in South Africa is required to buy only ammunition that is:

Accepted Answer

Compatible with the calibre of the firearm for which they are licensed

Answer

Available in the largest quantity possible per purchase

Answer

The cheapest available brand in any calibre

Answer

Manufactured outside South Africa to ensure quality