Say what now?

I feel like I got blindsided here, anyone else here aware of this fancy new Hornady baby / SAAMI approved cartridge for our wonderful AR's?

I am still trying to figure out the difference between this and 6.5 Grendel (other than .5)

Is the ammo going to be cheaper?


U.S. Military Adopts Hornady's New Cartridge: 6mm ARC


Hornady 6mm ARC: New Cartridge to Take AR-15 Platform to New Heights


6mm ARC Released ? Hands On Testing and Comparisons