Accession Number:

ADA160910

Title:

A Low Sensitivity Conducting Composition Primer for 20 mm Ammunition,

Descriptive Note:

Corporate Author:

MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)

Personal Author(s):

Report Date:

1985-07-01

Pagination or Media Count:

19.0

Abstract:

Conducting composition CC primers filed with mixes of normal lead styphnate RD1303 with Tintacarb 140 and Merck graphite as conducting component have been subjected to extensive testing for energy and power sensitivity and stability on thermal cycling. All mixes studies were substantially less sensitive than either production M52A3B1 or M52 DEFA primers. Recommendation is made that the RD1303 - Tintacarb 140 964 mix be chosen for continued examination as candidate conducting filling in a low sensitivity CC primer for 20 mm ammunition. A programme to achieve this is outlined. Modified mixes based on the filling in M52A3B1 primers were also examined. The high resistance and sensitivity of the M52A3B1 were found to be necessary to achieve fast functioning times. It is suggested that the significantly slower functioning times for the M52A3B1 primers, relative to M52 DEFA primers, result from slower buildup to deflagration following ignition. Author

Subject Categories:

  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE