Propulsion systems, puncturing devices, and firearm barrel cleaners that use these components to propel cleaning and/or lubricating projectiles down the barrel of a firearm are disclosed, along with related methods of manufacture and use.

A bore cleaning device includes a propellant, a gas seal situated proximate to the propellant, a bore rearward disk, a fibrous cup, and a bore forward disk. The bore forward disk is configured to press against a bottom surface of the fibrous cup, wherein the bore forward disk is narrower than a diameter of a bore of a firearm such that a gap exists around a circumference of the bore forward disk between the bore forward disk and the bore of the firearm. The gap is configured to enable the cup to deform into the gap. The device further includes a cylindrically shaped stack of cleaning materials between the bore rearward disk and the bore forward disk, wherein the stack of cleaning materials is configured to longitudinally transmit at least a portion of the force from the bore rearward disk to the bore forward disk.

A bore cleaning device includes a propellant, a gas seal situated proximate to the propellant, a bore rearward disk, a fibrous cup, and a bore forward disk. The bore forward disk is configured to press against a bottom surface of the fibrous cup, wherein the bore forward disk is narrower than a diameter of a bore of a firearm such that a gap exists around a circumference of the bore forward disk between the bore forward disk and the bore of the firearm. The gap is configured to enable the cup to deform into the gap. The device further includes a cylindrically shaped stack of cleaning materials between the bore rearward disk and the bore forward disk, wherein the stack of cleaning materials is configured to longitudinally transmit at least a portion of the force from the bore rearward disk to the bore forward disk.

Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.

Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.

An apparatus is disclosed including a bore cleaning device configured to clean a bore of a firearm. The device includes a propellant providing a force to push the projectile down the bore of the firearm, a fibrous cup, a dense material within the fibrous cup, and a frame including a bore forward disk configured to press against a bottom surface of the fibrous cup. The dense material includes one of a dense granulated material and a dense, viscous paste. The dense material is configured to deform and press radially outwardly against the cup as the propellant provides propelling force to the dense material.

An apparatus is disclosed including a bore cleaning device configured to clean a bore of a firearm. The device includes a propellant providing a force to push the projectile down the bore of the firearm, a fibrous cup, a dense material within the fibrous cup, and a frame including a bore forward disk configured to press against a bottom surface of the fibrous cup. The dense material includes one of a dense granulated material and a dense, viscous paste. The dense material is configured to deform and press radially outwardly against the cup as the propellant provides propelling force to the dense material.

An apparatus is disclosed including a bore cleaning device configured to clean a bore of a firearm. The device includes a propellant providing a force to push the projectile down the bore of the firearm, a fibrous cup, a dense material within the fibrous cup, and a frame including a bore forward disk configured to press against a bottom surface of the fibrous cup. The dense material includes one of a dense granulated material and a dense, viscous paste. The dense material is configured to deform and press radially outwardly against the cup as the propellant provides propelling force to the dense material.

An apparatus is disclosed including a bore cleaning device configured to clean a bore of a firearm. The device includes a propellant providing a force to push the projectile down the bore of the firearm, a fibrous cup, a dense material within the fibrous cup, and a frame including a bore forward disk configured to press against a bottom surface of the fibrous cup. The dense material includes one of a dense granulated material and a dense, viscous paste. The dense material is configured to deform and press radially outwardly against the cup as the propellant provides propelling force to the dense material.

The present invention relates to longitudinally sectioned bullets and methods that pertain to a projectile structured to be discharged from a firearm and comprising at least two separable longitudinal body sections and at least one binding element that holds the at least two longitudinal body sections together, such as before impact with a target. Said projectile is thus capable of controlled fragmentation against a soft target. Said projectile is adapted to also contain at least one supplemental payload deliverable to a target to further damage said target.