Keep it civil.
i guess this is the ammo, from the wiki:
The .277 Fury or 6.8×51mm Common Cartridge,[4][5] (designated as the .277 SIG Fury by the SAAMI[1]) is a centerfire rimless bottlenecked rifle cartridge announced by SIG Sauer in late 2019.[2] Its hybrid three-piece cartridge case has a steel case head and brass body connected by an aluminum locking washer to support the high chamber pressure of 80,000 psi (551.6 MPa).[2]
US: "Everyone, we're going to change to 5.56. Get with the program."
Everyone: [reluctantly changes to 5.56]
US: "We're abandoning 5.56. 6.8 is the new standard. Get with the program."
It has been 44 years since 5.56mm was NATO standardized, and 60 years since the U.S. was using it as a service caliber. I think it’s a bit unfair to characterize it as a flip-flop for the U.S. Army (not even all of the U.S. military) to change after such a long time.
So far the new 6.8mm is an Army exclusive project, so it’s a bit of a live experiment and not being thrust on the rest of US branches, much less all of NATO.
I’m honestly not sure if this particular route is a good idea or not, but we’ve clearly hit the limit of what 5.56mm can do, and if hard armor is actually a concern there needs to be some change in cartridge.
Let me have this one please
Lol, nothing against you.
If you want a narrative like your original, 7.62mm NATO is much better.
1945: British develop the .280 (7mm) intermediate round.
1951: US military Project SALVO confirms that intermediate cartridges were a superior service round at the time.
1951: British show off the EM-2 as a viable rifle for their .280 round.
1954: Despite all evidence for intermediate rounds the US adopts the M14 in 7.62mm NATO and pushes the full caliber standard.
1954: British adopt the L1A1 in 7.62mm NATO instead of the EM-2 because they want to standardize with the US.
1964: US adopts 5.56mm.
Arma 3 got it wrong! But they were only 0.3mm off.
6.5mm Grendel was a cartridge with a lot of hype behind it. While I don’t think Arma 3 specifies Grendel (I’m not an Arma expert) both the game and real world round are x39mm so I have to assume that was not a coincidence.