06-13-2011, 05:15 AM
Rootshot Wrote:I would guess that it's a simple 7.62x39 necked down to 6.5.No, they are quite specific that it is 6.5 Grendel, not 6.5x39.
Quote:If they use the Grendel case, they probably wouldn't be able to feed out of an AK mag due to the difference in case taper. It looks like an AK mag to me.While the different case taper would prevent 6.5 Grendel from stacking properly in, and feeding reliably from, 30-rd AK mags, loading only a few rounds could work (possibly with some slight modifications to the mag).
There's a better view of the magazine at 4:55 in http://www.youtube.com/watch?v=LDqkgAMfBog
Note that a low-capacity mag is being used, not a 30-rounder.