.270 Chinese American.
I can agree with that.
NONE of which is based on factual ‘data’ !!
Jerry
Only the Chinese used 6.8 or .277 bullets before Winchester.
Several years before Winchester.
So.. the .277 is a Chinese caliber. But claimed as an American caliber...
But alas, .270 Chinese American.
Instead of using a 6,5mm European or 7mm European caliber, they "invented"/copied the 6.8mm Chinese caliber.