From the outside looking in, a lot of Canadians couldn't understand what Americans had against 6.5s. They used to say it was because of the metric tag, but that didn't make any sense because lots of shooters love 6mms. The Creedmoor is here.
I think it was "foreign", 30 cal, .270, etc. were "American".
6 mm's were rolled out as .243 and .244, not 6 mm until the .244 cratered and Rem needed another name... Even Roy Weatherby named his 6 mm the .240.
Winchester didn't dare roll out their .264 WM as a 6.5 something or another...
