Canadian Firearms Practice · Question
Which of the following describes a 'pierced primer'?
A pierced primer allows high-pressure gases to escape rearward toward the shooter, often indicating a mechanical issue or excessive pressure.
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Question: Which of the following describes a 'pierced primer'?
Answer options:
- The primer has failed to ignite ✅ The firing pin has punched a hole through the primer cup, allowing gas to blow back
- The primer has fallen out of the casing
- The primer is seated too deeply in the pocket
Correct answer: The firing pin has punched a hole through the primer cup, allowing gas to blow back
Explanation: A pierced primer allows high-pressure gases to escape rearward toward the shooter, often indicating a mechanical issue or excessive pressure.
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