Does the 6.5 grendel have the potential to replace the 5.56 for the military?

[stanc]

https://en.wikipedia.org/wiki/XM214_Microgun

one of these would have been very nice in 6.5G along with a 6.5 SAW.

A 6.5 Gatling would be awesome. But, that's getting quite a ways ahead of ourselves. We don't yet have a belt-fed 6.5 LMG, due in no small part to lack of M27-type links.

Shoot, it's over a decade after introduction of the Grendel cartridge, and we still don't even have a mag-fed 6.5 IAR, although such could be built using COTS components.


Without suitable 6.5 weapons to demo the capabilities, how does anyone hope to interest the military?