Ammunition cartridge
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United States of America Patent
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May 10, 2016
Grant Date -
Oct 29, 2015
app pub date -
Feb 28, 2014
filing date -
Mar 1, 2013
priority date (Note) -
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Abstract
An ammunition cartridge has a casing and a bullet. The casing has a tubular body closed at one end and attached at the other end to the bullet. An internal surface of the casing attached to the bullet is provided with a coating of copper oxide. The copper oxide may be black, for example black cupric oxide. The coating can result in a more consistent and reliable separation of the bullet from the coated casing compared to an uncoated casing and this can assist the accuracy of the ammunition.
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