A reduced energy training cartridge for use in a long-rifle caliber, straight blowback operated firearms, said cartridge comprising: a cartridge case being defined by a rear portion with an external groove, a front portion and a wall with an outer surface and an inner surface; a primer disposed in said rear portion of said cartridge case; wherein the cartridge further comprises: a velocity reduction structure located at said front portion of said cartridge case, said velocity reduction structure having a canted surface and a straight cylinder; wherein the velocity reduction structure further comprises a front surface; and wherein the canted surface originates from the wall of the cartridge case; and wherein the straight cylinder originates from the canted surface; and wherein the front surface originates from the straight cylinder; and wherein the straight cylinder has a diameter less than the diameter of the wall of the cartridge case, a sabot made of a non-metallic material, slidably engaged within said cartridge case, said sabot having a rear portion with an outside diameter substantially equal to the inside diameter of said inner surface of said cartridge case, a sealing portion and a braking portion, said braking portion of said sabot interacting with said canted surface of said velocity reduction structure of said cartridge case, with the proviso that a terminal end of said straight cylinder of said velocity reduction structure does not contact said braking portion of said sabot; and wherein, upon percussion of said primer, said cartridge case is capable to slide relative to said sabot until such point when said canted surface of said velocity reduction structure of said cartridge case interacts with said braking portion of said sabot, thereby stopping further movement of said cartridge case relative to said sabot through said interaction of said braking portion with said canted surface of said velocity reduction structure of said cartridge case and wherein said braking portion is not contacting said terminal end of said straight cylinder of said velocity reduction structure; wherein said canted surface has an angle of slope between 10 degrees and 25 degrees relative to said center line of said cartridge case; wherein said sabot further comprises a sabot external angular or curved feature to aid in the feeding of training cartridges from a firearm magazine to barrel chamber, wherein the sabot external angular or curved feature starts at a point that is equal to the diameter of a surface of the straight cylinder. a cartridge case being defined by a rear portion with an external groove, a front portion and a wall with an outer surface and an inner surface; a primer disposed in said rear portion of said cartridge case; a velocity reduction structure located at said front portion of said cartridge case, said velocity reduction structure having a canted surface and a straight cylinder; wherein the velocity reduction structure further comprises a front surface; and wherein the canted surface originates from the wall of the cartridge case; and wherein the straight cylinder originates from the canted surface; and wherein the front surface originates from the straight cylinder; and wherein the straight cylinder has a diameter less than the diameter of the wall of the cartridge case, a sabot made of a non-metallic material, slidably engaged within said cartridge case, said sabot having a rear portion with an outside diameter substantially equal to the inside diameter of said inner surface of said cartridge case, a sealing portion and a braking portion, said braking portion of said sabot interacting with said canted surface of said velocity reduction structure of said cartridge case, with the proviso that a terminal end of said straight cylinder of said velocity reduction structure does not contact said braking portion of said sabot; and wherein, upon percussion of said primer, said cartridge case is capable to slide relative to said sabot until such point when said canted surface of said velocity reduction structure of said cartridge case interacts with said braking portion of said sabot, thereby stopping further movement of said cartridge case relative to said sabot through said interaction of said braking portion with said canted surface of said velocity reduction structure of said cartridge case and wherein said braking portion is not contacting said terminal end of said straight cylinder of said velocity reduction structure; wherein said canted surface has an angle of slope between 10 degrees and 25 degrees relative to said center line of said cartridge case; wherein said sabot further comprises a sabot external angular or curved feature to aid in the feeding of training cartridges from a firearm magazine to barrel chamber, wherein the sabot external angular or curved feature starts at a point that is equal to the diameter of a surface of the straight cylinder.