09-14-2020, 04:16 PM
I know you can stuff a few Grendel rounds into a 5.56 mag and it usually works. And you can stuff a few 7.62x39 grendel sized (i.e. not fireformed yet, so still 7.62x39 tapered), into a Grendel mag, and runs fine. So I guess you could try it and it might or might not work. There's a difference between a few rounds, and fully loaded, and I don't imagine fully loaded will work. Biggest challenge will be the feed lips are spread a bit farther, so they might try to pop out, not sure. Obvioulsy not for serious usage, but for in-a-pinch; there's a decent shot it might work for 5 rounds or so.