Abstract: A cartridge comprising an elongate rifle bullet with a plurality of circumferential grooves having overmolded polymer therein defining embedded polymer rings. The cartridge further having a case and propellant. The polymer rings have an outer surface that is flush with, that is, conforming to the outer surface of the body. The polymer may have be selected to have a favorable coefficient of friction with respect to the barrel. The bands offering reduction of the metal to metal contact between the bullet and the barrel while not diminishing the ballistic coefficient of the bullet.

Abstract: 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.

Abstract: A system for firing reduced energy cartridges from a modern sporting rifle utilizes a bolt assembly weighing less than a conventional bolt assembly for such rifles and utilizes blow back for cycling the bolt assembly rather than gas operation. A bolt insert in a polymer bolt carrier of the bolt assembly has a projection that fits within a recess on the rear face of reduced energy cartridges. The reduced energy cartridges having a polymer casing, a rimfire power load for propellant, the power load recessed from the rear face of the casing. Tuning the bolt may comprise adjusting the weight of the bolt or the sliding resistance of the bolt assembly in the upper receiver. The bolt may be formed by metal injection molding with a polymer bolt carrier attached thereto.

Abstract: A cartridge comprising an elongate rifle bullet with a plurality of circumferential grooves having overmolded polymer therein defining embedded polymer rings. The cartridge further having a case and propellant. The polymer rings have an outer surface that is flush with, that is, conforming to the outer surface of the body. The polymer may have be selected to have a favorable coefficient of friction with respect to the barrel. The bands offering reduction of the metal to metal contact between the bullet and the barrel while not diminishing the ballistic coefficient of the bullet.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A bullet assembly comprising a bullet and a cup assembly, the cup assembly may have a ring portion for scraping the barrel of a muzzleloader. The cup assembly may be slidable on the bullet with an extended position and a contracted position, the contracted position having a greater diameter than the extended position. A contraction inhibiting member that requires shearing off of the member for contraction may be disposed on one of the components.

Abstract: Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The breech end accepts the propellant and means are provided to prevent breech loading of the projectile. A propellant cartridge conforms to a constriction portion to minimize ullage. A projectile is inserted in the muzzle end seats on the constriction portion. The propellant cartridge 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 cartridge may have a primer mechanism integrated into a proximal end. Projectiles have sliding components that have an axial elongate position and an axial shortened position and may be loaded with a ramrod having an engagement portion for each of the two pieces whereby the projectile doesn't prematurely collapse.

Abstract: A bullet assembly comprising a bullet and a cup assembly, the cup assembly may have a ring portion for scraping the barrel of a muzzleloader. The cup assembly may be slidable on the bullet with an extended position and a contracted position, the contracted position having a greater diameter than the extended position. A contraction inhibiting member that requires shearing off of the member for contraction may be disposed on one of the components.

Abstract: A bullet system including a bullet body with a tail portion engaged with a polymer cup that provides enhanced engagement of the barrel upon firing. The bullet system may have a radial retracted state that corresponds to an elongated axial state of the bullet system that allows the cupped bullet to be fed down the barrel at a reduced diameter with reduced engagement with the barrel. The radial expansion of the bullet system occurs upon axial length reduction of the bullet system by axial compression. The axial compression can occur upon firing of the propellant or when loading with the ramrod. The bullet system can provide a tactile seat force indicator tip insert within the tip of the bullet body that provides a tactile sensation when the bullet is properly seated against the propellant charge. A cutting edge may be provided for scraping the barrel upon insertion of the bullet.

Abstract: A bullet system including a bullet body with a tail portion engaged with a polymer cup that provides enhanced engagement of the barrel upon firing. The bullet system may have a radial retracted state that corresponds to an elongated axial state of the bullet system that allows the cupped bullet to be fed down the barrel at a reduced diameter with reduced engagement with the barrel. The radial expansion of the bullet system occurs upon axial length reduction of the bullet system by axial compression. The axial compression can occur upon firing of the propellant or when loading with the ramrod. The bullet system can provide a tactile seat force indicator tip insert within the tip of the bullet body that provides a tactile sensation when the bullet is properly seated against the propellant charge. A cutting edge may be provided for scraping the barrel upon insertion of the bullet.

Abstract: A muzzle-loader bullet system includes 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.

Abstract: Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The breech end accepts the propellant and means are provided to prevent breech loading of the projectile. A propellant cartridge conforms to a constriction portion to minimize ullage. A projectile is inserted in the muzzle end seats on the constriction portion. The propellant cartridge 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 cartridge may have a primer mechanism integrated into a proximal end. Projectiles have sliding components that have an axial elongate position and an axial shortened position and may be loaded with a ramrod having an engagement portion for each of the two pieces whereby the projectile doesn't prematurely collapse.

Abstract: A neuromuscular disrupter gun and associated projectile. The projectile contains a capacitor, having either its dielectric or its plates made from liquid. The gun charges the projectile prior to discharge from the gun of the projectile. The projectile holds the charge in flight and discharges on impact. To provide appropriate contact points, the projectile is designed to open and emit the liquid upon impact.

Abstract: A neuromuscular disrupter gun and associated projectile. The projectile contains a capacitor, having its dielectric made from liquid. The gun charges the projectile prior to discharge from the gun of the projectile. The projectile holds the charge in flight and discharges on impact. To provide appropriate contact points, the projectile either carries contact wires or is designed to open and emit the liquid upon impact.

Abstract: A neuromuscular disrupter gun and associated projectile. The projectile contains a capacitor, having either its dielectric or its plates made from liquid. The gun charges the projectile prior to discharge from the gun of the projectile. The projectile holds the charge in flight and discharges on impact. To provide appropriate contact points, the projectile is designed to open and emit the liquid upon impact.

Abstract: A neuromuscular disrupter gun and associated projectile. The projectile contains a capacitor, having either its dielectric or its plates made from liquid. The gun charges the projectile prior to discharge from the gun of the projectile. The projectile holds the charge in flight and discharges on impact. To provide appropriate contact points, the projectile either carries contact wires or is designed to open and emit the liquid upon impact.

Abstract: A neuromuscular disrupter gun and associated projectile. The projectile contains a capacitor, having either its dielectric or its plates made from liquid. The gun charges the projectile prior to discharge from the gun of the projectile. The projectile holds the charge in flight and discharges on impact. To provide appropriate contact points, the projectile either carries contact wires or is designed to open and emit the liquid upon impact.