Abstract: A muzzle loading bullet gas check has external recess and ridge system, and/or an internal locking ridge system. The preferred gas check has an opening or recess on its front end for receiving and frictionally engaging a rearwardly extending post of the bullet, the opening also preferably including an internal radial ridge for gripping the post and/or locking with an indent on the post. The barrel-interacting part of the gas check has one or more external recesses and adjacent radial ridges/edges protruding relative to the recesses, which serves to reduce the total surface area of the gas check contacting the bore. The recesses do not touch the bore of the firearm, resulting in less friction and easier loading, while the outer ends/surfaces of the ridges/edges do touch the bore to retain the bullet in the bore during handling and hunting and to effectively capture gasses after the firing explosion.

Abstract: A muzzle loading bullet gas check has external recess and ridge system, and/or an internal locking ridge system. The preferred gas check has an opening or recess on its front end for receiving and frictionally engaging a rearwardly extending post of the bullet, the opening also preferably including an internal radial ridge for gripping the post and/or locking with an indent on the post. The barrel-interacting part of the gas check has one or more external recesses and adjacent radial ridges/edges protruding relative to the recesses, which serves to reduce the total surface area of the gas check contacting the bore. The recesses do not touch the bore of the firearm, resulting in less friction and easier loading, while the outer ends/surfaces of the ridges/edges do touch the bore to retain the bullet in the bore during handling and hunting and to effectively capture gasses after the firing explosion.

Abstract: A muzzle loading bullet gas check has external recess and ridge system, and/or an internal locking ridge system. The preferred gas check has an opening or recess on its front end for receiving and frictionally engaging a rearwardly extending post of the bullet, the opening also preferably including an internal radial ridge for gripping the post and/or locking with an indent on the post. The barrel-interacting part of the gas check has one or more external recesses and adjacent radial ridges/edges protruding relative to the recesses, which serves to reduce the total surface area of the gas check contacting the bore. The recesses do not touch the bore of the firearm, resulting in less friction and easier loading, while the outer ends/surfaces of the ridges/edges do touch the bore to retain the bullet in the bore during handling and hunting and to effectively capture gasses after the firing explosion.

Abstract: A gas check member, for use in muzzle-loading firearms, frictionally attaches rearward of a sub-caliber bullet to maximize the efficiency of such firearms. The diameter of the gas check preferably exceeds that of the bore slightly to prevent scoring and deformation of the bullet during loading, to hold the projectile in place within the barrel and to prevent moisture from contacting the powder when in place. Upon firing, the gas check minimizes the escape of propellant gases around the projectile and imparts a large, uniformly distributed forward thrust to the bullet to maximize the ballistic qualities of the shot. The gas check preferably incorporates an unstable connection between inner and outer members of the gas check that fractures, at about the time the bullet exits the barrel, to facilitate quick and reliable detachment of the outer member from the bullet.

Abstract: A muzzleloading bullet is provided with a pin at its back end for affixing a gas check thereto. Preferably, the pin is generally cylindrical in nature, and has a distal end that is larger compared to its proximal end that is attached to the body of the bullet. The pin therefore “expands” from its proximal to its distal end so that the resilient gas check may snap onto the pin for being secured to the bullet. Also, the expanding pin installed in a cylindrical central hole provides a small space or gap between the inner edge/surface of the central hole and the outer surface of the installed pin at one area or all the way around the pin near its proximal end. This gap increases the ease with which exploding gases from behind the gas check in the gun barrel enter the central hole of the gas check and exit between the pin and gas check when the gun is fired, which, in turn, deforms the gas check near the central hole and encourages the separation of the gas check from the bullet.

Abstract: A gas check member for use in muzzle-loading firearms is provided. The invented gas check is designed to conveniently, frictionally attach rearward of a sub-caliber bullet to maximize the efficiency of such firearms. The diameter of the gas check preferably exceeds that of the bore slightly to prevent scoring and deformation of the bullet during loading, to hold the projectile in place within the barrel and to prevent moisture from contacting the powder when in place. Upon firing, the gas check minimizes the escape of propellant gases around the projectile and imparts a large, uniformly distributed forward thrust to the bullet to maximize the ballistic qualities of the shot. The design incorporates an unstable connection between inner and outer members that, upon firing, fractures to facilitate quick and reliable detachment of the outer member from the bullet. Detachment occurs to prevent interference with the trajectory of the bullet upon exit from the barrel.

Abstract: A gas check member for use in muzzle-loading firearms is provided. The invented gas check is designed to conveniently, frictionally attach rearward of a sub-caliber bullet to maximize the efficiency of such firearms. The diameter of the gas check preferably exceeds that of the bore slightly to prevent scoring and deformation of the bullet during loading, to hold the projectile in place within the barrel and to prevent moisture from contacting the powder when in place. Upon firing, the gas check minimizes the escape of propellant gases around the projectile and imparts a large, uniformly distributed forward thrust to the bullet to maximize the ballistic qualities of the shot. The design incorporates an unstable connection between inner and outer members that, upon firing, fractures to facilitate quick and reliable detachment of the outer member from the bullet. Detachment occurs to prevent interference with the trajectory of the bullet upon exit from the barrel.

Abstract: A muzzleloading bullet is provided with a pin at its back end for affixing a gas check thereto. Preferably, the pin is generally cylindrical in nature, and has a distal end that is larger compared to its proximal end that is attached to the body of the bullet. The pin therefore “expands” from its proximal to its distal end so that the resilient gas check may snap onto the pin for being secured to the bullet. Also, the expending pin installed in a cylindrical central hole provides a small space or gap between the inner edge/surface of the central hole and the outer surface of the installed pin at one area or all the way around the pin near its proximal end. This gap increases the ease with which exploding gases from behind the gas check in the gun barrel enter the central hole of the gas check and exit between the pin and gas check when the gun is fired, which, in turn, deforms the gas check near the central hole and encourages the separation of the gas check from the bullet.