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post #28 of (permalink) Old 01-23-2013, 08:47 AM
B&C 140 Class
Join Date: Nov 2009
Location: Minnesota
Posts: 850
Snap Caps

Snap Caps are special dummy cartridges designed for dry firing. They are either made of plastic or aluminum. The primer on them is either spring loaded or a rubber type material designed for firing pin hits. The old rule of thumb was that repeat strikes of the firing pin going all the way to the stop because it didn't hit a primer could crystalize the metal and make it brittle.

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