| 摘要 |
FIELD: weapons and ammunition. ^ SUBSTANCE: barrel inner cylindrical surface features smooth grooves arranged at a distance from the nozzle adapter center allowing additional hitting element (AHE) to move in the said grooves under centrifugal force effects. The groove number and ratio exceed those of AHE. Note that the said grooves can be furnished with through powder gas exhaust channels. Proposed invention allows using standard bullets not containing AHE. ^ EFFECT: enlarged area of hitting by one shot at stable compactness of AHE within bullet trajectory limits. ^ 2 cl, 4 dwg
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