9mm Mars
The 9 mm Mars is an experimental centerfire pistol cartridge developed in the late 19th century based on necking down the.45 Mars Long case. The bullet has two deep cannelures, and the case is crimped into both. The case mouth is chamfered on the outside to fit flush into the forward cannelure.
9mm Mars
- Name
- 9 mm Mars
- Field
- pistol cartridge
- Region
- United Kingdom
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Documentary connections
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Documentary evidence
Documentary basis
Authority files
wikidata · Q4646471 · wikipedia · 9mm Mars
In this article
Overview
Overview
This elaborate bullet seating was necessary to withstand the violent feed mechanism of the Mars Automatic Pistol. The cartridge headspaces on the shoulder adjacent to the neck. The case has a thin rim and deep extractor groove in comparison to most rimless pistol cartridges. There was a very similar 8.5mm Mars cartridge firing a 139 grain bullet at 1550 feet per second. The Mars cartridges were publicized as the most powerful handgun cartridges through the early 20th century; but less than 100 pistols were made and manufacture ceased in 1907.
Key facts
Key facts
• Name — 9 mm Mars • Origin — United Kingdom • Type — Pistol • Design Date — 1899 • Manufacturer — Kynoch • Is Si Specs — yes • Case Type — Rimless, bottleneck • Bullet — 9.14 • Neck — 9.79 • Shoulder — 11.92 • Base — 12.14 • Rim Dia — 11.81 • Rim Thick — 1.07 • Case Length — 26.32 • Length — 36.23 • Bw1 — 156 • Btype1 — FMJ • Vel1 — 1400 • En1 — 675 • Balsrc — Textbook of Automatic Pistols MUNICION.ORG
Definition
Definition
The canonical record carries the following identifying particulars. The same evidence establishes that 9mm Mars is classified as a pistol cartridge. Institutional cataloguing adds that 9mm Mars is associated with United Kingdom.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
- United Kingdom
Named but not plotted · 1
9mm Mars is associated with United Kingdom.
Country
Catalogued output
Recorded examples
9mm Mars is recorded as a kind of pistol cartridge. It is also recorded that 9mm Mars was manufactured by Kynoch.
Primary material
Documents and archives
reference work
- “9mm Mars”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority record
- Wikidata, structured authority record Q4646471: 9mm Mars
General reference · Wikidata
Text attribution
Licensing
Text attribution
Part of the biographical narrative on this page reuses licensed material. Its origin, revision and licence are recorded here.
The biographical narrative on this page is based on the Wikipedia article 9mm Mars, revision 1186192625 (EN edition), by its contributors. VALÉORINE has edited that text and built its own documentary record around it. The reused material is available under CC BY-SA 4.0, and this page's reuse of it is offered under the same licence. Everything else on this page — the chronology, the holdings, the evidence, the plates and the connections — is VALÉORINE's own record. Sources and licences.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witnessauthority record
General reference
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
Elsewhere in Militaria
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