autogun

Military Guns and Ammunition

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This is intended for people interested in the subject of military guns and their ammunition, with emphasis on automatic weapons.

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NGSW evaluation update   Small Arms <20mm

Started 31/7/20 by autogun; 15320 views.
poliorcetes

From: poliorcetes

10/10/20

1. How can we know the mass of CT or TV cartridges? Or weight savings?

2. Can TV cartridges admit as much pressure as CT? For instance, moving into magnum territory, can extraction groove resist when it is inserted into plastic walls?

QuintusO

From: QuintusO

10/10/20

1. By modeling them.

2. Probably not, but I'm testing that with FEA right now.

In reply toRe: msg 84
gatnerd

From: gatnerd

25/10/20

A new video of the GD and Textron prototypes being tested.

https://www.youtube.com/watch?v=5SGySgHP2wU

DavidPawley

From: DavidPawley

25/10/20

I think I saw the SIG AR in there too.

*edit* No, it was the Textron.

Interesting that both the Textron and GDLS AR and carbine were shown being tested, but not the SIG. It could be coincidence, I guess.

autogun

From: autogun

16-Jan

Some info on TFB concerning the SIG NGSW.

gatnerd

From: gatnerd

17-Jan

Was just going to post the video:

https://www.youtube.com/watch?v=vlrBEEG__1E

-Recoil looks stiff, but not unmanageable

-6.8 Spear backwards compatible with 7.62

-SIG guy claims to have already received Gov't orders for the rifle / LMG 

-6.8 Case not only higher pressure, but also holds +1gr of powder capacity due to thinner case walls at the base (similar to Shell Shock.)

nincomp

From: nincomp

17-Jan

I am not so sure about this thing.  Did you see what it has done to that fellow's mustache?? :0

Seriously though, I would like more people to shoot it and give their opinions.  It reminds me of the film clips of the M14 that appeared to show that it was easily controllable in full auto fire.   The average soldier did not do so well with it though.

  • Edited 17 January 2021 1:47  by  nincomp
gatnerd

From: gatnerd

17-Jan

Oh man, that mustache... someones gotta let him know thats not a good look.

In regards to controllability, I assume it will be better then the M14, simply due to having an inline stock (to reduce muzzle climb) and has a suppressor (which reduces recoil by ~33%.)

But it still looks pretty brisk. 

autogun

From: autogun

17-Jan

gatnerd said:

-SIG guy claims to have already received Gov't orders for the rifle / LMG 

Since the Army will be thoroughly testing the guns and ammunition, they must indeed have placed orders for trial quantities.

poliorcetes

From: poliorcetes

17-Jan

https://youtu.be/vlrBEEG__1E?t=622 about growth potential on internal pressure

I would assume that true velocity design is already dead if evaluators stress that metric. They explicitly admit that they chose a bullpup design in order to avoid pressure growth, and indeed case base points towards a lack of meaningful reinforcement in order to cope with pressure growth

The more pressure and thus Vo, the less tungsten need?

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