We are not currently in the process of developing our own 6.5mm round for the AR platform. We have mentioned the 6.5 in our communications on the ACR simply because that platform is capable of handling the Grendel or something like it. At this point, there are no plans to chamber the ACR for the Grendel. However, that may change if we receive enough input from the marketplace to make it seem necessary.

Remington Military Products Division still list it as a caliber on their ACR webpage.

Screenshot of the Remington ACR webpage.

I expect this has generated much confusion as the company now has an official statement regarding the issue. For now the only 6.5mm cartridge in the Remington stable is the .260 Remington¹

Many thanks to rootman for sending me the top link.

Not long after posting it, I was emailed by a well placed industry insider who told me that he very much doubted Remington would ever produce a gun chambering the Grendel. His reason? The management behind the development of the cartridge left a lot of bad blood in their wake. He suspected that the listing of "6.5mm" was a marketing ploy.

His prediction that Remington would not offer it has come to fruition. Adam Heggenstaller reported (emphasis mine) ...

Ongoing development will focus on the 6.8 mm Rem. SPC, 7.62x39 mm, a yet-to-be-disclosed 6.5 mm round and, get this, the .30 Rem. AR.

Will we ever see this cartridge? I don't know. At least we know why Remington are not just saying "Grendel".

UPDATE: My original source just emailed me to suggest that the .30 Remington AR necked down would make a lot of sense! He has a good point. (This is just speculation - not inside knowledge).

7.62x51mm NATO, 6.5mm Grendel and 5.56x45mm NATO

Robinson Armament XCR

Robinson arms recently caused some controversy over their support of Mitt Romney.