Assertion: mm | /r/HasProperty | adopted as standard
Facets:
value: in 1980
type: TEMPORAL
Source sentences:
text: When 5.56×45mm NATO was adopted as standard in 1980, NATO chose a 178 mm (1:7) rifling twist rate for the 5.56×45mm NATO chambering to adequately stabilize the relatively long NATO L110/M856 5.56×45mm NATO tracer projectile.