Serbia adopting 6.5 Grendel as main military cartridge

[stanc]

My guess is the shoulder pushed out just enough not to chamber in a Grendel and the pressure jacked up to what the action can take.

So you're thinking something similar to the 6.5 Grendel Max?

_____________________ 7.62x39 ___________ 6.5x39 __________ 6.5 Grendel ________ 6.5 Grendel Max