Narrowing high strength polymer-based cartridge for blank and subsonic ammunition
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United States of America Patent
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Jun 12, 2018
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N/A
app pub date -
Jun 20, 2016
filing date -
Jan 14, 2011
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Abstract
A high strength polymer-based cartridge casing includes a cartridge body, molded from a polymer, having a first end and an opposing second end, and enclosing a volume. A bullet is removably engaged with the first end and an insert is engaged to the second end. A shoulder portion is located proximate the first end and a propellant chamber formed in the volume. The propellant chamber has a first diameter proximate to the shoulder, a second diameter proximate to the insert and greater than the first diameter, and a linear slope disposed between the first diameter and the second diameter.
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