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I wondered if you'd see that. I really do like the idea of the .277 Fury and the .277 Annoyed...but somehow I feel it might be a tough sell to the SIG marketing department.

Yeah; I don't see how the Fury could be anything but a barrel-burner. The extractor is also working on steel instead of a softer metal, so it'll be interesting to see what the real-world application looks like over time in terms of frequency of extractor replacement. But I kinda bet the Army spec didn't care too much about those factors.

And to be clear, I personally consider 800 yards to be a get-in-the-car-and-drive-there distance. I didn't really misspeak, but I messed up the context when I wrote, "I need something that can reach out effectively a few hundred yards (but not long range distances), and my preference for that was a well-established NATO caliber..."

It certainly isn't that the .308 can't shoot long distances, it's just that I don't shoot long distances and don't need the kinds of cartridge/rifle technologies that do a better job of getting me out over a half-mile. I have huge respect for those who can knock down an 8-inch steel plate from a mile away, but it is, alas, a small-arms skillset I will never have.

Besides. Somebody in a position of authority once told me if I were worried about those kinds of distances that I'd need an F-16.

patterson wrote: ↑Wed Jun 21, 2023 7:01 pm I thought the military had adopted the new .277 Fury

Yep, it did. At least, the Army did...but it's called simply "6.8x51mm" rather than the much cooler ".277 SIG Fury." It came along with the choice of the new battle rifle formats, SIG's XM5 and XM250 LMG.

The Fury can't really be a fury, though, without the hybrid case design that has a stainless steel base joined by an aluminum washer to a brass body. Gotta have that to handle the positively stupid chamber pressure of 80,000 psi. By comparison, the NA SAAMI max for both the .308 and the 6.5 Creedmoor is 62,000 psi. So to be a fury it has to be a special cartridge that needs to be used only in a firearm built to handle it. I'm honestly not sure if that particular combination is available for civilian purchase yet.

But evidently the cartridge can be conventional all-brass if it's downloaded to a pressure of 65,000 psi. Wait! I've got it! We could call that the ".277 SIG Annoyed"; TAM wouldn't be able to get a trademark, but maybe at least a promotional arrangement? But it wouldn't produce these kinds of ballistics:


I'm in the same club as powerboater, though. I need something that can reach out effectively a few hundred yards (but not long range distances), and my preference for that was a well-established NATO caliber that had wide availability (including milsurp cases), relatively low cost, and that had a bunch of different guns that used it. Mind you, if someone wanted to give me a 6.5 Creedmoor or a SIG XM5, I certainly wouldn't turn it down. Just sayin'.

Thanks for that. The article also includes a brief history of each cartridge and I learned some stuff about how the 6.5 Creedmoor came to be.