6.5-284 Norma
6.5-284 Norma is a rifle cartridge or wildcat cartridge.
Overview
Swedish rifle cartridge.
In detail
It is associated with Finland. The record gives 1999 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
“6.5-284 Norma”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4031907: 6.5-284 Norma
Consult the source