.277 SIG Fury (6.8x51mm) - .270 WCF Performance from a 16" Bbl.

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Increasing pressure is a very effective way to increase efficiency. However even if the rifle is strong enough, there are two big problems that kick in around 65KPSI:
1) Primers won't take it and deform/pierce.
2) The cases stick in the chamber as primary extraction can't overcome the friction.

The article does not appear to discuss what solution (if any) is offered for these two problems.

1. Could Remington’s electronic ignition system be an option? Thicker cups that don’t have to be dented?
2. Fluted chambers like H&K uses could help with extraction.

What about machining a chamber and throat insert from Stellite to help with the pressure erosion issues? Is that a possibility? Accuracy would probably suffer, but military rifles aren’t held to a particularly high standard anyway.
 
Well, yes, and there are electric ignition aircraft machine guns. Don't know how well it will do in the PBI.

Fluted chamber with a rotating bolt? Might work. Or just Slamfire Treat them with lube.

There are machine gun barrels with Stellite chamber and throat. I once saw the manual for twisting the expensive sleeves out of shot out barrels. A pair of pipe wrenches, as I recall.
 
1. Could Remington’s electronic ignition system be an option? Thicker cups that don’t have to be dented?
2. Fluted chambers like H&K uses could help with extraction.

What about machining a chamber and throat insert from Stellite to help with the pressure erosion issues? Is that a possibility? Accuracy would probably suffer, but military rifles aren’t held to a particularly high standard anyway.

Why are we trying to throw solutions at a problem that Sig has evidently solved through good engineering of the case itself? They developed it and it passed the first stage of military testing so apparently its viable.
 
WOW!
Sig has evidently scored a marketing coup.

The 6.8Sig Fury is NOT the selected weapon or vendor for the squad automatic weapon program. Neither is the cartridge.

The award went to Beretta Defense Technolgies and General Dynamics Ordinance and Tactical systems.

Sig, in it’s “fury” for not being selected has released THEIR offerings to the commercial market in an attempt to “set the table” for the future for establishing market presence.

The AMERICAN RIFLEMAN had a blurb on this last month. Further info is available from www.truevelocityinc.com new NGSW. Sig, H&K, and FN got passed over as did ATK/ Federal, Textron.

“Insiders” I’ve conversed with indicate that the actual ammunition is a “large” case and won’t fit into an AR10 format. The personal defense weapon will be a bull pup format, and ballistics do indeed live up to the hype... as do weight savings. SAW and PDW are standard with suppressors.

Also see www.military.com
 
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WOW!
Sig has evidently scored a marketing coup.

The 6.8Sig Fury is NOT the selected weapon or vendor for the squad automatic weapon program. Neither is the cartridge.

The award went to Beretta Defense Technolgies and General Dynamics Ordinance and Tactical systems.

Sig, in it’s “fury” for not being selected has released THEIR offerings to the commercial market in an attempt to “set the table” for the future for establishing market presence.

The AMERICAN RIFLEMAN had a blurb on this last month. Further info is available from www.truevelocityinc.com new NGSW. Sig, H&K, and FN got passed over as did ATK/ Federal, Textron.

“Insiders” I’ve conversed with indicate that the actual ammunition is a “large” case and won’t fit into an AR10 format. The personal defense weapon will be a bull pup format, and ballistics do indeed live up to the hype... as do weight savings. SAW and PDW are standard with suppressors.

Also see www.military.com


“Just two months ago, the Army selected General Dynamics Ordnance and Tactical Systems inc., Textron Systems and Sig Sauer Inc. for the final phase of the NGSW effort “

From

https://www.google.com/amp/s/taskan...ation-squad-weapon-photos-2641075144.amp.html
 
Thanks for the update!
I noticed that the Sig ammunition isn’t polymer-s/s composite also.
Hmmmmm...

BTW, article says both were selected for final testing...
 
Thanks for the update!
I noticed that the Sig ammunition isn’t polymer-s/s composite also.
Hmmmmm...

BTW, article says both were selected for final testing...

Your right though that sig’s marketing does make it sound like they won the contract when in fact they were only selected to compete in the next trial. I like their chances though, the army doesn’t like big changes so I think they are going to get heartburn over a bullpup with plastic ammo unless it does something really magic compared to sig’s very comfortable and familiar offering.
 
WOW!
Sig has evidently scored a marketing coup.

The 6.8Sig Fury is NOT the selected weapon or vendor for the squad automatic weapon program. Neither is the cartridge.

The award went to Beretta Defense Technolgies and General Dynamics Ordinance and Tactical systems.

Sig, in it’s “fury” for not being selected has released THEIR offerings to the commercial market in an attempt to “set the table” for the future for establishing market presence.

The AMERICAN RIFLEMAN had a blurb on this last month. Further info is available from www.truevelocityinc.com new NGSW. Sig, H&K, and FN got passed over as did ATK/ Federal, Textron.

“Insiders” I’ve conversed with indicate that the actual ammunition is a “large” case and won’t fit into an AR10 format. The personal defense weapon will be a bull pup format, and ballistics do indeed live up to the hype... as do weight savings. SAW and PDW are standard with suppressors.

Also see www.military.com

The Army plans to select a final design for both weapons from a single company in the first quarter of 2022 and begin fielding them to an infantry brigade combat team in the first quarter of 2023, modernization officials have said...

So, no, don't think that the decision has been made.

More the case of the Finalists being selected.




GR
 
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