I think the military made the right call on the Sig fury and rifle combo, but IIRC, commercially available 6.8 x 51 ammo will not have the stainless-steel base and thus will not be producing 80,000 PSI. It therefore will have much lower performance numbers. There is potentially an issue with standard, modern bolt guns handling the pressure of the new round. Why in hell they went with 6.8 instead of 6.5 is a head scratcher.
