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Relating to black-powder firearms, a nipple wrench is used to unscrew nipples which hold percussion caps. [1]
References
- ^ Randy Smith (20 June 2012). The Black Powder Plainsman: A Beginner's Guide to Muzzle-Loading and Reenactment on the Great Plains. Skyhorse. pp. 143–. ISBN 978-1-62087-419-6.
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