Cartridge base and plastic cartridge case assembly for ammunition cartridge
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United States of America Patent
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Nov 5, 2013
Grant Date -
Feb 2, 2012
app pub date -
Jul 30, 2010
filing date -
Jul 30, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A cartridge for ammunition has a base with an axial end section. An annular wall extends from the enlarged outer peripheral lip section to an opposite end. The axial end section has a primer cavity therein and a radially outwardly extending peripheral extraction lip. An annular ledge is axially positioned at an inner end of said primer cavity and radially extends inwardly from said annular wall. A passage has a reduced diameter compared to the primer cavity and extends through the annular ledge. A main charge cavity is at an opposite side of the ledge from the primer cavity. A knurl section is on an outer surface of said cylindrical wall. A cartridge case is attached to the base about said knurl section.
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