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Evdokia K Mihaylova

Gueorgui Milev Mihaylov

A smooth bore barrel system utilizes an ammunition round capable to provide the projectile, covered with predetermined usually spiral grooves ( ) and lands ( ) congruently engaged in the rifled by the same manner inner surface ( A) of the cartridge case ( ). When fired the rifled cartridge case serves as a short disposable rifled barrel spinning the projectile. A front short non-rifled part ( B) of the cylindrical portion of the projectile is extended into the smooth bore barrel ( ) having sliding fit within. Alternatively, spinning momentum is provided by having the grooves tapering to narrow channels extended through the short cylindrical portion of the projectile forming jets ( ), which rotate the projectile by jet propulsion forces. Spinning momentum is gained by two independent approaches which effect could be combined or used separately.

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Virginia Beach, VA, United States of America

Evdokia K Mihaylova