12.7×108 mm (Dushka)

Description

Single base seven perforated cylindrical grain contains Nitrocellulose (NC), Diphenylamine (DPA), Dibutyl Phthalate (DBP) and Potassium Salt. It is glazed with graphite. This propellant is used in 12.7 ×108 cartridges for DShK machine gun.TECHNICAL SPECIFICATIONSLength3.25 ± 0.15 mmDiameter2.2 ± 0.2 mmHole diameter0.2 ± 0.05 mmWeb thickness0.4 ± 0.05 mmGraphite≥ 0.4 %Ash≥ 0.4 %Residue Solvent≥ 0.6 %External Moisture1.0-1.8 %Total Volatile≥3.5 %Stability at 134.5 °C≥ 60 min BALLISTIC SPECIFICATIONSTotal charge~ ? grAverage Velocity (HEI)828 ± 7 m/sStd. dev. of velocity≥ 8 m/sAverage Pressure× at +21°C≥3200 barPressure× of single round at 21°C, +71°C and -33°C≥ 3500 bar