“There's fewer rounds required for the soldier to carry,” Lt. Col. Micah Rue, product manager for soldier weapons at the Army’s Program Executive Soldier office, told Task & Purpose. “They don't need as many as they needed in the past to neutralize the target. But if you look at the round itself, it's actually a more substantial round.”
I smell a croc of crap. The old M16 hype was that you could carry almost the ammo weight-wise compared to 7.62.

I'd love to shoot this round in a bolt gun to get a no bullshit idea of the round's potential compared to a 77 SMK or even a 7.62 SMK... for reference. I'll bet is sucks balls.