"Sorry, you weren't here to ping in 1998 when I was stockpiling".
Sorry I didn't know we were having a conversation concerning the historical prices of ammo.
My point is that 6.5 Grendel needs to be available and cheap before it becomes the replacement for 5.56 or 7.62x51.
I do think that 6.5 Grendel has a better chance of catching on than .50 Beowulf does.