1. The impression made by the firing-pin in the primer cup of the centerfire primer or the rim of rimfire cartridges. 2. A measure of the kinetic energy delivered by the firing-pin.
FIRING-PIN INDENT
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1. The impression made by the firing-pin in the primer cup of the centerfire primer or the rim of rimfire cartridges. 2. A measure of the kinetic energy delivered by the firing-pin.