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Canadian Firearms Practice · Question

What is the primary difference between centrefire and rimfire ammunition construction?

Centrefire ammunition has a separate primer cap seated in the center of the case head, whereas rimfire priming is part of the case rim.

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Question: What is the primary difference between centrefire and rimfire ammunition construction?

Answer options: ✅ Centrefire uses a replaceable primer in the center of the base; rimfire does not

  • Rimfire uses heavier powder charges than centrefire
  • Centrefire is only used in handguns while rimfire is only used in rifles
  • Rimfire cases are always made of steel

Correct answer: Centrefire uses a replaceable primer in the center of the base; rimfire does not

Explanation: Centrefire ammunition has a separate primer cap seated in the center of the case head, whereas rimfire priming is part of the case rim.

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