The 7x49 Liviano is still one of my favorites, developed by FN using the US 7,62x49mm case necked down to 7mm. This is still an excellent cartridge if used today and with newer loadings. Sold to Venezuela with the new FN FAL rifle chambering this cartridge in 1954.

Back in 1980, Remington introduced the 7mm-08 cartridge with a 140gr bullet @ 2860 fps which was a slight improvement over the original 7x49 cartridge.

Also have a photos of the Japaneseicon specialized 7,62x51 NATO cartridge designed for the Howa Type 64 (1964) rifle designed and manufactured in Japan. Never exported either. This rifle was designed to use the lower power 7,62 cartridge but could use the full power 7,62mm cartridge if required. The Japanese headstamp shows a half NATO symbol indicating lower power. These cartridges are not common outside of Japan.