CHARGE FOR 7,62 mm SPORTING RIFLE CARTRIDGE Russian patent published in 2012 - IPC C06B25/20 F42B5/16 

Abstract RU 2448932 C2

FIELD: chemistry.

SUBSTANCE: invention relates to making charges for small arms and can be used in making charges for a 7.62 mm calibre sporting rifle cartridge. The charge contains pellet powder made from nitrocellulose with nitrogen oxide content 213…214 ml NO/g, carbon and diphenylamine with packed density 0.960…0.990 kg/dm3, and content of centralite I and dinitrotoluene in the grain surface layer is in the range of 3.0…6.0 and 3.0…4.5 wt %, respectively, with respect to weight of the powder, and the surface layer further contains graphite in amount of 0.1…0.3 wt % and ethyl acetate in amount of 0.5…1.2 wt %, with relative moisture content of the powder of 0.3…0.9 wt %, with the following weight ratio of fractions, %: 0,4…0.56 mm - 55…68; 0.56…0.7 mm - 27…40; larger than 0.7 mm and smaller than 0.4 mm - not more than 5.

EFFECT: high stability of ballistic characteristics on the weight of the powder charge, bullet speed, bullet speed spread, explosion pressure in the barrel of the weapon and reduced bullet scatter when shooting at a target.

1 dwg, 1 tbl

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RU 2 448 932 C2

Authors

Staroverov Aleksandr Aleksandrovich

Staroverova Elena Ivanovna

Gatina Roza Fatykhovna

Khatsrinov Aleksej Il'Ich

Abdulkajumova Sufija Makhmutovna

Stepanov Viktor Mikhajlovich

Imamieva Ajgul' Ravilevna

Mikhajlov Jurij Mikhajlovich

Dates

2012-04-27Published

2010-02-08Filed