9×18mm Ultra

9×18mm Ultra is a pistol cartridge or cartridge family.

Also recorded as 9 × 18 mm Police; 9 mm Police; 9mm Police; 9mm Ultra; 9 mm Ultra.

In detail

It is associated with Austria and Germany.

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“9×18mm Ultra”, English Wikipedia, consulted as further reading
Consult the source
reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q277465: 9×18mm Ultra
Consult the source