Grooved firearm chamber

Abstract

In various embodiments, a firearm assembly devices, systems and methods are provided. The firearm assembly can comprise a barrel and a chamber comprising a channel. The chamber may have a first length. The chamber may comprise an internal wall defining an internal cavity. The chamber can also couple to the barrel. The channel can be defined in the internal wall of the chamber. The channel may have a second length that is shorter than the first length. In various embodiments, the firearm assembly may be a component of a rotating bolt firearm. In various embodiments, internal cavity of the firearm assembly has a profile configured to receive a cartridge. The devices systems and methods described herein reduce common rotating bolt firearm failure modes by encouraging case ejection, compression, and / or contraction.

Description

FIELD OF INVENTION

[0001] The disclosure relates to devices, systems and methods for extraction of cartridge cases from firearms chambers. More specifically, the disclosure relates to a firearm chamber comprising channels and associated systems and methods.BACKGROUND OF THE INVENTION

[0002] Common failure modes associated with rotating bolt firearms include for example, failure to extract failures and blown primer failures. Failure to extract failures occur when a cartridge is activated (e.g., fired) and the bullet travels through and out the muzzle of the barrel, but the cartridge case fails to eject from the firearm chamber. Blown primer failures occur when the primer is struck and activated, but the powder contained in the cartridge case is not ignited. In this way, the bullet is not fired, but the chamber is rendered inoperative until the action of the firearm is cycled or cleared to remove the cartridge. This disclosure provides devices, systems, and methods that improve the reliab...

Images