Is this the composite 6.8 military cartridge long rumored?
SAAMI has accepted several new rifle cartridges, including the 6.8 True Velocity Composite which pushes a 150-grain bullet to the velocity of 2,700 fps.
https://www.thefirearmblog.com/blog/...le-cartridges/
https://saami.org/wp-content/uploads...2022-01-28.pdf