Cartridge

Abstract

The invention concerns with ammunition and may be used for manufacturing cartridges of rifle arms and other kinds of ammunition, as well as for improving characteristics of sniper riffle barrels. The basic task of the invention is improvement of the cartridge design by the following way: an additional covering on a bullet made on the basis of a film-forming organic carrier with filling substance on the basis of the products of hydrate dehydration containing oxides provides improvement of close grouping of shooting; the adverse conditions of weapon storage render less influence on this characteristic, that indicates the stabilization of barrel channel parameters and increase of weapon survivability. The application of REVITALIZANT-XADO as an additional covering allows fastening the process of leveling, smoothing of barrel channels and achieving improvement of close grouping of shooting from 30% up to 44.5% and more. Meeting the requirements of the weapon exploitation technical specification and of the maintenance instruction permits the regenerative effect to progress and to reach 60% according to the criterion of close grouping of shooting both during the storage and the further operation.

1 . A cartridge, containing a bullet, a powder charge, an ignition cap and a sleeve, characterized that the addition covering with thickness δ=(0.01 to 0.03) D is located on a bullet, where D is the bullet diameter appropriates to a bullet calibre, made on the basis of a film-forming is organic carrier contains filling substance, letter is products of dehydration of the hydrates, containing such oxides as MgO, SiO 2 , Al 2 O 3 , CaO, Fe 2 O 3 , K 2 O, Na 2 O, at the filling substance (0.05 to 0.015) grn/ml in the film-forming carrier.  
     
     
         2 . The cartridge of  claim 1 , characterized that a film-forming gel on the basis of paraffin is used as an organic carrier for cartridges of calibre 22LR, 5.56×45 to 7.62×39, the covering being put on the whole bullet surface.  
     
     
         3 . The cartridge of  claim 1 , characterized that a film-forming polymer is used as an organic carrier for cartridges of calibre 7.62×54 and bigger, the covering being applied as a belt of the width h=(0.7 to 1.8) D and at the distance L=(0.5 to 0.7) D from the bullet tip.