Preloaded sabot system

A muzzleloading ammunition system comprising:

• a sabot having an open end and a closed end, and an extended hollow body therebetween, the extended body being substantially cylindrical with a radially facing interior surface, the sabot closed end being vulnerable to puncture by a breech plug fixed in a breech end of a firearm barrel;
• an extended body lip or extended body groove circumferentially situated within the extended hollow body on the radially facing interior surface, placed intermediate the open end and the closed end of the sabot;
• a propellant charge inserted within the extended hollow body from the open end of the sabot and below the extended body lip or extended body groove, wherein said propellant charge comprises free or pre-packaged granular black powder or black powder substitute, such that if said granular powder or black powder substitute is pre-packaged in a pre-package form, said pre-package form includes a thinner, or puncture-vulnerable area, and is vulnerable to puncture by a breech plug fixed in a breech end of the barrel;
• a cap inserted into the open end of the sabot, having a complementary cap groove or cap lip for interlocking with the extended body lip or the extended body groove, respectively, and sealing the propellant charge a distance from the open end of the sabot;
• and
• a projectile inserted into the open end of the sabot and situated proximate the cap, such that the projectile extends approximately to or above the open end of the sabot.

A preloaded sabot ammunition system comprising:

• a sabot including:
• a closed breech end, an open muzzle end, and a substantially cylindrical body extending from the closed breech end to the open muzzle end, and an internal cavity within the cylindrical body, the cylindrical body having an outside diameter complementary to an inside diameter of a bore of a breech end of a firearm barrel;
• a propellant charge insertable within the internal cavity of the cylindrical body from the open muzzle end of the sabot, the propellant charge having a top end exposed to the open muzzle end of the sabot upon insertion;
• a projectile slideably inserted within the sabot open muzzle end proximate the top end of the propellant charge, and held by the sabot;
• and
• a breech plug including:
• a cylindrical body extending from a first end to a second end along a longitudinal axis, the cylindrical body including a threaded, or tightly coupled, connection for removable installation with a corresponding complementary connection at a breech end of a barrel of the firearm;
• a nose portion at a muzzle end of the breech plug;
• a cavity or pocket at a breech end of the breech plug for receiving a primer cap;
• an internal borehole for transporting gas from the primer cap into the barrel through the nose portion of the breech plug, upon firing of the firearm;
• the nose portion having a protrusion for puncturing or piercing the sabot upon placement of the sabot into the breech end of the barrel, such that when the firearm is fired, hot gas from the primer cap is transported through the breech plug, into the punctured or pierced sabot, igniting the propellant charge.