Which statement about rimfire ammunition is true?

Which statement about rimfire ammunition is true?

• A. Rimfire primer is in the rim of the casing
• B. Rimfire cartridges are reloadable
• C. Rimfire cartridges are not reloadable
• D. Rimfire uses a centerfire primer

Answer: (A)

In rimfire ammunition, the priming compound is embedded in the rim of the cartridge base. When the firing pin strikes that rim, it ignites the primer, which then ignition the powder charge. This design means there isn’t a separate primer pocket in the middle of the base. Because the primer is part of the rim, rimfire rounds aren’t intended to be reloaded in a practical or reliable way. In contrast, centerfire ammunition uses a primer set in a separate pocket at the center of the base. So the statement is true because the primer is located in the rim, not in the center.

In rimfire ammunition, the priming compound is embedded in the rim of the cartridge base. When the firing pin strikes that rim, it ignites the primer, which then ignition the powder charge. This design means there isn’t a separate primer pocket in the middle of the base. Because the primer is part of the rim, rimfire rounds aren’t intended to be reloaded in a practical or reliable way. In contrast, centerfire ammunition uses a primer set in a separate pocket at the center of the base. So the statement is true because the primer is located in the rim, not in the center.