Metallic cartridge cases

Polyvinylacetate. A thermoplastic primarily used as a binder in non-metallic cartridge cases (see Mil Spec below)... 

Polyvinylacetate aq emulsion for use as a binder in non-metallic cartridge cases is covered by US Mil Spec, Polyvinyl Acetate Aqueous Emulsion (PAAE) (For use in Ammunition) , MIL-P-50855(MU) (31 March 1971). The requirements and criteria are in Table 1... 

Until 1846 all attempts to develop a satisfactory fully self-contained cartridge shared a serious disadvantage. None of them effectively sealed the chamber at the time of discharge and consequently there was a rearward escape of gas resulting in a reduction in the efficiency of the system. This problem was solved by the introduction of the metallic cartridge case which momentarily expands during the discharge process and seals the chamber. 

Centerfire cartridges were produced by Pauly in 1808 but it was not until 1854 that the firm of Smith Wesson perfected and patented both the centerfire and rimfire metallic cartridge case. Since this time cartridge development has consisted of many small improvements, some resulting from advances in... 

Other NC sheets were cut into.strips corresponding to the height of cartridges and wrapped around a pin, which had a diameter 2 to 2.5mm smaller that the inside diam of the std metal cartridge case. Then the surface of... 

Percussion caps Metal cartridge cases other than small arms 1181,064 22,712 326,397 24,864... 

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