Army Finally Picks and It's SIG

[Moped]

7 minutes ago, Trekbike said:

So does this mean that the media and politicians will no longer be able to claim the AR15 platform is a "weapon of war"? 

I think you know the answer to that one!

[GooseGrim]

17 hours ago, Moped said:

This explains the squarish box mags. I though they looked more 7.62, than 5.56.

Another question… Will the rest of NATO follow suit?

I did additional digging, and I couldn't find a barrel manufacturer who would chamber in .277 Fury yet. I think they want more public data first but based on what I'm reading there are claims that it can defeat any existing body armor on the market. Personally, I'm skeptical on that claim. The chamber pressure is supposedly around 80k psi, and it looks like the optimal barrel length is going to be 20-24 inches to achieve that massive 3,120 FPS. This is a round that is designed by its nature to be reloaded. The case has what appears to be a steel aftcap with brass casing walls, which means you may get multiple uses out of the base beyond what the brass casing can handle. The chamber and bolt lock-up is going to be crucial with the amount of pressure being handled though. Headspace is already important and it's about to get a whole lot more important. If it's really that powerful and economical of a round, I don't see why NATO would hesitate to adopt it. War costs money and the more you have the more likely you are to succeed.

Links for reference:

ELITE BONDED POLYMER TIPPED 277 SIG FURY HYBRID (sigsauer.com)

.277 SIG Fury Cartridge: Everything You Need to Know - Guns and Ammo

 

[Defender]

30 minutes ago, GooseGrim said:

I did additional digging, and I couldn't find a barrel manufacturer who would chamber in .277 Fury yet. I think they want more public data first but based on what I'm reading there are claims that it can defeat any existing body armor on the market. Personally, I'm skeptical on that claim. The chamber pressure is supposedly around 80k psi, and it looks like the optimal barrel length is going to be 20-24 inches to achieve that massive 3,120 FPS. This is a round that is designed by its nature to be reloaded. The case has what appears to be a steel aftcap with brass casing walls, which means you may get multiple uses out of the base beyond what the brass casing can handle. The chamber and bolt lock-up is going to be crucial with the amount of pressure being handled though. Headspace is already important and it's about to get a whole lot more important. If it's really that powerful and economical of a round, I don't see why NATO would hesitate to adopt it. War costs money and the more you have the more likely you are to succeed.

Links for reference:

ELITE BONDED POLYMER TIPPED 277 SIG FURY HYBRID (sigsauer.com)

.277 SIG Fury Cartridge: Everything You Need to Know - Guns and Ammo

 

Sin this isn’t going to be much related to the 6.8mm currently out there…?

[GooseGrim]

1 hour ago, Defender said:

Sin this isn’t going to be much related to the 6.8mm currently out there…?

6.8x43 (Remington 6.8 SPC) is kinda close? It still doesn't exceed the 55,000-psi rating that SAAMI had released at the time. The .277 Fury is a 6.8x51. I would not recommend interchanging the two lol

[moodster]

It's going to be a good while before this rifle and cartridge actually replace all current service rifles. There are still national guard units carrying converted M16 A1s. I kind of feel like this won't end up in every soldiers hand. 

But that is a good point to ponder. what effect will this have on the civilian market as far as rifle ammo and chamberings. The new cartridge is around 80,000 psi or something? Civilian available ammo looks to be significantly lighter loads with all brass cases. No matter what it's going to be an expensive supply chain. Thats a lot of pressure. 

Edited June 4, 2022 by moodster