Ammunition casing having a cannelure with step

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11933592
APP PUB NO 20220260347A1
SERIAL NO

17683335

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Importance

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Abstract

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A casing for an ammunition cartridge comprises a sleeve portion and a base portion. The casing may be two-piece, where the base portion is secured to the sleeve portion by means of a nipple having a flared end. The base portion comprises a cannelure that extends lengthwise from a flange. The cannelure, which is preferably curved, is deeper than a conventional cannelure and thus the casing weight is reduced. The cannelure has a step that is adjacent the flange, for limiting inward travel of the lip of a hook of the bolt of a firearm. Alternatively, a casing may be a one-piece casing, wherein the base and sleeve are integral.

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Patent Owner(s)

  • SHELL SHOCK TECHNOLOGIES INC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Viggiano, Anthony Groton, US 8 497

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