A weapon for firing cased telescoped (CT) ammunition includes a barrel, a chamber member and a carrier assembly. The chamber member defines a chamber for a CT round for firing, and translates between a firing position aligned with the barrel and an ejection/loading position. The chamber member is spring-biased toward the firing position. The carrier assembly carries the firing pin and (1) performs a recoil in which a carrier and rammer move rearward from a battery position to bring the next CT round into a ramming position and to move the chamber member from the firing position to the ejection/loading position, and (2) performs a counter-recoil to return to the battery position and cause the rammer to push the next CT round into the chamber. The chamber member is released for biased return to the firing position for a next firing cycle.

A firearm for firing cased telescoped (CT) ammunition cartridges that includes a split chamber configured to fully support a CT cartridge when it is fired, and that includes i) a dynamic rear chamber portion defining a pocket in a face of a bolt, and ii) a static front chamber portion that is integral to the barrel and separate from the bolt. A cartridge extraction mechanism engages the CT cartridge prior to the CT cartridge being fired, and holds the CT cartridge in the pocket in the bolt face as the bolt moves rearward to pull the CT cartridge out of the static front chamber portion and into an ejection position. An ejector is operable to eject the CT cartridge from the pocket in the face of the bolt when the CT cartridge reaches the ejection position.

A magazine for storing cased telescoped (CT) cartridges. The magazine includes vertically extending side-wall ribs that project inwards into a loading channel. The side-wall ribs are positioned in alignment with a circumferential groove in each CT cartridge. The side-wall ribs prevent a backwards oriented CT cartridge from being pushed from the loading position through the loading channel into a body of the magazine. A moveable lip at the top of the magazine may move out of the way when the magazine is attached to a firearm, to allow the CT cartridge located in the loading position to be fed vertically out of the top of magazine. Each CT cartridge may include a thermal protective insert that provides thermal insulation from heat emanating from a barrel of a firearm when the CT cartridge is located in a chamber of the firearm.

A break barrel rifle comprises a butt, on which the cylinder (2) is attached, a barrel (3) where the pellet chamber (5) is located, a magazine (12) for pellets (13), together with articulation means (4) and characterised in that it comprises: an elastic rod (6), with a central section (9) and two ends that are coupled to the cylinder (2), a body (10) where the central section (9) of elastic rod (6) is positioned, with forward and backward movement inside said body (10) and that is coupled to the barrel (3) and pushing means (11) linked to the elastic rod (6) and positioned between the pellet (13) to be loaded and the elastic rod (6).

A break barrel rifle comprises a butt, on which the cylinder (2) is attached, a barrel (3) where the pellet chamber (5) is located, a magazine (12) for pellets (13), together with articulation means (4) and characterised in that it comprises: an elastic rod (6), with a central section (9) and two ends that are coupled to the cylinder (2), a body (10) where the central section (9) of elastic rod (6) is positioned, with forward and backward movement inside said body (10) and that is coupled to the barrel (3) and pushing means (11) linked to the elastic rod (6) and positioned between the pellet (13) to be loaded and the elastic rod (6).

A hydraulically dampened rotary barrel locking system for a handgun is provided which preferably includes a receiver, a barrel and a spring-loaded moveable slide. The barrel comprises one or more axially aligned locking lugs configured to allow the slide to travel down the barrel axis when the lugs align with a keyway slot in an extended lug boss at the discharge end of the slide. Felt recoil is reduced and accuracy is improved due to a more balanced slide-to-barrel mass ratio than prior art and hydraulic dampening between the barrel and slide due to improved journal bearing action.

A hydraulically dampened rotary barrel locking system for a handgun is provided which preferably includes a receiver, a barrel and a spring-loaded moveable slide. The barrel comprises one or more axially aligned locking lugs configured to allow the slide to travel down the barrel axis when the lugs align with a keyway slot in an extended lug boss at the discharge end of the slide. Felt recoil is reduced and accuracy is improved due to a more balanced slide-to-barrel mass ratio than prior art and hydraulic dampening between the barrel and slide due to improved journal bearing action.

A pistol comprising of a frame, a slide operable to reciprocate with respect to the frame, a barrel connected to the slide, with a cylinder defining a plurality of chambers connected to the slide to reciprocate with the slide, and operable to rotate with respect to the slide. The frame defines an ammunition compartment including an upper most ammunition position. The cylinder has a first chamber registered with the barrel, and a second chamber registered with the upper most ammunition position, such that in response to a cartridge in the first chamber discharging, the slide reciprocates to a recoil position to eject the cartridge case and to cause the upper most cartridge to enter the second chamber. In response to return of the slide to battery, the cylinder rotates to register the second chamber and cartridge, to alignment with the barrel for subsequent discharge.

A pistol comprising of a frame, a slide operable to reciprocate with respect to the frame, a barrel connected to the slide, with a cylinder defining a plurality of chambers connected to the slide to reciprocate with the slide, and operable to rotate with respect to the slide. The frame defines an ammunition compartment including an upper most ammunition position. The cylinder has a first chamber registered with the barrel, and a second chamber registered with the upper most ammunition position, such that in response to a cartridge in the first chamber discharging, the slide reciprocates to a recoil position to eject the cartridge case and to cause the upper most cartridge to enter the second chamber. In response to return of the slide to battery, the cylinder rotates to register the second chamber and cartridge, to alignment with the barrel for subsequent discharge.