“21.6cm long, weighing 964g”
I would say that Mr. Browning did not use centimeters and grams.
LOL. Yeah, Matthew Ross is British.
Related, the partnership between Browning and the Belgian company Fabrique Nationale Herstal (FN) began in 1897. Belgium adopted the metric system in 1816.
Thay’s OK. Essentially 9mm bullet (plus 55 micrometersmoere metal)