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 comprising a bore cleaning device operable to clean a bore of a firearm is provided. The apparatus includes a cylindrical cleaning pad including a periphery portion including a radial outer surface of the cylindrical cleaning pad, a center portion including a remainder of the cylindrical cleaning pad contained radially within the periphery portion, and a compression expansion cut disposed in the center portion and extending from a first flat end of the cylindrical cleaning pad to a center of the cylindrical cleaning pad. The apparatus further includes a propellant located in a bore-rearward position of the cylindrical cleaning pad providing a force to push the cleaning pad down the bore of the firearm and a payload located in a bore-forward position of the cylindrical cleaning pad.

An apparatus comprising a bore cleaning device operable to clean a bore of a firearm is provided. The apparatus includes a cylindrical cleaning pad including a periphery portion including a radial outer surface of the cylindrical cleaning pad, a center portion including a remainder of the cylindrical cleaning pad contained radially within the periphery portion, and a compression expansion cut disposed in the center portion and extending from a first flat end of the cylindrical cleaning pad to a center of the cylindrical cleaning pad. The apparatus further includes a propellant located in a bore-rearward position of the cylindrical cleaning pad providing a force to push the cleaning pad down the bore of the firearm and a payload located in a bore-forward position of the cylindrical cleaning pad.

An apparatus including a ballistic barrel cleaning cartridge is provided. The apparatus includes a casing including a casing recess. The casing recess is closed at a first end of the casing. The apparatus further includes a propellant disposed within the casing recess and an abrasive-binding agent composite slug constructed with an abrasive agent and a polymerized binding agent. The abrasive-binding agent composite slug is disposed within the casing recess at a second end of the casing. Expansion of the propellant is operable to expel the abrasive-binding agent composite slug from the casing recess and propel the abrasive-binding agent composite slug down a bore of a firearm.

An apparatus including a ballistic barrel cleaning cartridge is provided. The apparatus includes a casing including a casing recess. The casing recess is closed at a first end of the casing. The apparatus further includes a propellant disposed within the casing recess and an abrasive-binding agent composite slug constructed with an abrasive agent and a polymerized binding agent. The abrasive-binding agent composite slug is disposed within the casing recess at a second end of the casing. Expansion of the propellant is operable to expel the abrasive-binding agent composite slug from the casing recess and propel the abrasive-binding agent composite slug down a bore of a firearm.

Snap cap devices configured to be inserted within an associated firearm are disclosed. The exemplary snap cap devices are made from or otherwise include a material configured to release corrosion protection molecules.

A ballistic barrel cleaning cartridge is provided. The ballistic barrel cleaning cartridge includes a casing including a casing recess. The casing recess is closed at a first end of the casing. The cartridge further includes a propellant disposed within the casing recess and an abrasive-binding agent composite slug constructed with an abrasive agent and a polymerized binding agent. The abrasive-binding agent composite slug is disposed within the casing recess at a second end of the casing. The abrasive-binding agent composite slug includes a bore forward recess configured for receiving a bore forward high-density weight and a retention lip configured for retaining the bore forward high-density weight within the bore forward recess. The cartridge further includes the bore forward high-density weight. Expansion of the propellant is operable to expel the abrasive-binding agent composite slug from the casing recess.

A ballistic barrel cleaning cartridge is provided. The ballistic barrel cleaning cartridge includes a casing including a casing recess. The casing recess is closed at a first end of the casing. The cartridge further includes a propellant disposed within the casing recess and an abrasive-binding agent composite slug constructed with an abrasive agent and a polymerized binding agent. The abrasive-binding agent composite slug is disposed within the casing recess at a second end of the casing. The abrasive-binding agent composite slug includes a bore forward recess configured for receiving a bore forward high-density weight and a retention lip configured for retaining the bore forward high-density weight within the bore forward recess. The cartridge further includes the bore forward high-density weight. Expansion of the propellant is operable to expel the abrasive-binding agent composite slug from the casing recess.

A liquid or powder filled cartridge is used to cool and lubricate the bore of gun barrels to eliminate cook off and improve barrel life. A primer is used to rupture the nose of the cartridge and propel the cooling material into the bore. The coolant absorbs heat from the bore of the barrel and is ejected from the muzzle of the weapon. The liquid or powder may include lubricants, preservatives, antifreeze, coolants, cleaners, or mixtures thereof, or other materials to enhance barrel performance. The liquid or powder filled cartridge is particularly well suited to externally powered weapons. Ammunition may be fed into the weapon using a mix of conventional cartridges and coolant filled cartridges. Internally cooling the barrel may be used to reduce or eliminate cook off and increase barrel life.

A liquid or powder filled cartridge is used to cool and lubricate the bore of gun barrels to eliminate cook off and improve barrel life. A primer is used to rupture the nose of the cartridge and propel the cooling material into the bore. The coolant absorbs heat from the bore of the barrel and is ejected from the muzzle of the weapon. The liquid or powder may include lubricants, preservatives, antifreeze, coolants, cleaners, or mixtures thereof, or other materials to enhance barrel performance. The liquid or powder filled cartridge is particularly well suited to externally powered weapons. Ammunition may be fed into the weapon using a mix of conventional cartridges and coolant filled cartridges. Internally cooling the barrel may be used to reduce or eliminate cook off and increase barrel life.