Which statement accurately distinguishes centerfire from rimfire ammunition?

Which statement accurately distinguishes centerfire from rimfire ammunition?

• A. Centerfire primers are located in the rim and rimfire primers are in the center.
• B. Centerfire primers are in the center of the base; rimfire primers are in the rim; centerfire is more common and reliable for defensive use.
• C. Centerfire uses a rim primer; Rimfire uses a center primer.
• D. Rimfire is more common and reliable for defensive use.

Answer: (B)

The main distinction is where the primer is located and how ignition works. In centerfire ammunition, the primer sits in the center of the base of the cartridge and is struck by the firing pin. This center primer design is capable of withstanding higher pressures, is easy to replace or service (for reloaders), and is the standard for handguns and rifles—making it the more reliable choice for defensive use. In rimfire ammunition, the priming compound is distributed around the rim of the base. The firing pin strikes the rim to ignite the primer. Rimfire is typically used in smaller calibers, is less reloadable, and tends to be less robust and reliable for defensive applications. So the correct statement reflects that centerfire primers are in the center of the base, rimfire primers are in the rim, and centerfire is more common and reliable for defensive use.

The main distinction is where the primer is located and how ignition works. In centerfire ammunition, the primer sits in the center of the base of the cartridge and is struck by the firing pin. This center primer design is capable of withstanding higher pressures, is easy to replace or service (for reloaders), and is the standard for handguns and rifles—making it the more reliable choice for defensive use.

In rimfire ammunition, the priming compound is distributed around the rim of the base. The firing pin strikes the rim to ignite the primer. Rimfire is typically used in smaller calibers, is less reloadable, and tends to be less robust and reliable for defensive applications.

So the correct statement reflects that centerfire primers are in the center of the base, rimfire primers are in the rim, and centerfire is more common and reliable for defensive use.