New assault rifle for some units of the british army

[CINDERS]

Is the U.S up gunning to an 6.8mmx 51mm I wonder how the training will go with the two types of ammo the one for conflict the other for training, would love the first one for my collection it being a 2 piece case of brass and stainless steel.
As the 80,000CUP operating pressure in a brass case would see allot of ruptures I feel, but boy it must have one hell of a gas system to contain all that and without slamming the bolt out the back of the receiver.

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[browningautorifle]

two types of ammo the one for conflict the other for training

The Japanese did that too, didn't they? They had a rifle in 7.62X51 with two gas settings, one for training ammo and one for service ball.

[RCS]

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 Japanese 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.

[CINDERS]

7.62X51 with two gas settings,

In this case jim they have the training round in a one piece brass case loaded down to a useable pressure, that conflict round @80K CUP in my mind would make it a hot rod and a barrel burner.
So unless they are using chrome lined barrels one feels throat and muzzle wear will be an issue.