Originally posted by Mav714
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What I don't understand is why today everybody (but me ) has proposed alternative cartridges only in 6.5mm, 6.8mm and 7mm. Why, them's all furrin calibers.
6mm is a uniquely American military caliber. Japan, Norway and Sweden had 6.5mm, China had 6.8mm, Spain had 7mm, but only the United States has ever adopted and fielded 6mm rifles and machine guns.
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