Single-Base Powder
Definition
A smokeless propellant using nitrocellulose as the sole energetic component, typically 12.6-13.0% nitrogen content, plasticised for stability. Lower flame temperature than double-base; preferred for rifle applications requiring barrel longevity.
- Energetic component
- Nitrocellulose only
- Nitrogen content
- Approximately 12.6-13.0%
- Flame temperature
- Lower than double-base powder
- Preferred use
- Rifle ammunition, for barrel longevity
Common questions
How does single-base powder differ from double-base powder?+
Double-base powder adds nitroglycerin to nitrocellulose for higher energy output and flame temperature, while single-base powder uses nitrocellulose alone, which burns cooler and causes less barrel erosion over sustained rifle use.
Why does the powder type matter for gunshot residue interpretation?+
The organic compounds released differ between single-base and double-base propellants, so identifying nitroglycerin alongside nitrocellulose in residue can help distinguish the ammunition type used, supporting comparisons to recovered cartridges.
Related terms
- Berdan Primer
- Primer design where the anvil is integral to the cartridge case; primer cup contains only the explosive compound. Identified by two offset...
- Boxer Primer
- Primer design with a self-contained anvil inside the primer cup assembly and a single central flash hole in the case. Standard for...
- Double-Base Powder
- A smokeless propellant combining nitrocellulose and nitroglycerin (10-40% NG by mass). Higher energy density and flame temperature than single-base; standard for handgun...
- Lead Styphnate
- Lead trinitroresorcinate (Pb(C6H(NO2)3O2)), the primary explosive in conventional primer compounds. Co-oxidised with barium nitrate and antimony sulfide to produce the Pb-Ba-Sb triad...
- MAP (Maximum Average Pressure)
- The SAAMI statistical upper bound for chamber pressure in a given cartridge specification, expressed in PSI. The CIP equivalent is published in...
- SINTOX
- A lead-free, heavy-metal-free primer formulation developed by DAG (Deutsche Ammunitions- und Geschossfabrik) and Geco in Germany in the 1990s-2000s, replacing lead styphnate...