Evaluation of a Steel Cartridge Case for use with 76MM/62 Caliber Ammunition
NAVAL SURFACE WEAPONS CENTER DAHLGREN LAB VA
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A series of tests were performed to evaluate the suitability of a steel cartridge case as a replacement to the brass cartridge case used in the 76mm62 caliber family of ammunition. The scope of the test program conducted was limited to cartridge case integrity at service and proof conditions, and compatibility with the 76mm MARK 75 gun mount. Tests performed included cartridge case integrity and compatibility tests in the MARK 75 gun mount, and structural overtests proof firings in a single fire mount. One cartridge case out of 205 cases tested was found to have failed structurally upon firing. After examination of the cartridge case by the Naval Ordnance StationIndian Head, Maryland, it was determined that the cause of the failure was the presence of a manufacturing defect in the case wall. As a result of the test program and analysis conducted, it is concluded that the steel cartridge case is a suitable replacement for the 76mm brass cartridge with respect to structural integrity and compatibility with the MARK 75 gun mount.
- Ammunition and Explosives