SMALL ARMS CARTRIDGE BULLET Russian patent published in 2013 - IPC F42B5/02 F42B12/04 F42B30/02 

FIELD: weapons and ammunition.

SUBSTANCE: small arms cartridge bullet consists of a slug mounted in the cover. On outer surface of bullet or its elements (cover, slug), including their end surfaces made from one type of metals, a composite zinc coating with thickness of 4-6 mcm is made by means of an electrolytic method. First, a loosened layer is created on surface of the bullet and/or its elements, for better adhesion of the applied coating by etching. Composition consisting of zinc and brightening additions, the outer surface of which is smoothened by passivation, is applied onto a loosened layer. Boundary of metal contact on end surfaces of a bullet and its elements is tightly closed with composite zinc coating.

EFFECT: reduction of barrel wear at firing.

3 cl, 5 dwg