40 mm L60 & L70

Description

Single base seven perforated cylindrical grain contains Nitrocellulose (NC), Diphenylamine (DPA) and additives. It is used in 40mm L60 Bofors gun. ● Single base one perforated cylindrical grain contains Nitrocellulose (NC), Diphenylamine (DPA) and additives. It is used in 40mm L70 ammunition (for Bofors 40mm naval gun or similar guns).  TECHNICAL SPECIFICATIONSTypeL60L70Length (mm)5 ± 0.36 ± 1Diameter (mm)2.6 ± 0.21.8 ± 0.2Hole diameter (mm)0.2 ± 0.050.25 ± 0.1Web thickness (mm)0.5 ± 0.10.8 ± 0.15Diphenylamine(%)1-21-2Graphite (%)≤ 0.4≤ 0.4Moisture & Volatiles (%)0.4-20.4-2Heat of explosion (cal/gr)≤ 800≤ 900Stability at 134.5 °C (min)≥ 40≥ 40  BALLISTIC SPECIFICATIONSTypeL60L70Total charge (gr)~ 380~ 450Average Velocity (m/s)860 ± 101000 ± 5Std. dev. of Velocity (m/s)≤ 7≤ 8Average Pressure at +21°C (bar)≤ 2900≤ 4030Max. Pressure at +63°C (bar)≤ 3400≤ 4500