7×57mm Mauser
7×57mm Mauser is a rifle cartridge or ammunition model.
Also recorded as 7mm Mauser; 7×57mm; 7 × 57; .275 Rigby.
Overview
German military rifle cartridge.
In detail
It is associated with German Empire. The record gives 1893 as its date of establishment or first appearance.
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
“7×57mm Mauser”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q270069: 7×57mm Mauser
Consult the source