6.5×25mm

6.5×25mm is a pistol cartridge or ammunition model.

Also recorded as 6.5×25mm CBJ.

In detail

6.5×25mm is a pistol cartridge or ammunition model.

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
“6.5×25mm CBJ”, English Wikipedia, consulted as further reading
Consult the source
reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4641590: 6.5×25mm
Consult the source