gatnerd

Military Guns and Ammunition

Hosted by gatnerd

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

  • 3279
    MEMBERS
  • 185992
    MESSAGES
  • 11
    POSTS TODAY

Discussions

NGSW Phase 2 Consolidation and info   Small Arms <20mm

Started 30/8/19 by gatnerd; 320570 views.
EwingGreg

From: EwingGreg

1-Oct

found some more recent information on the design.   \ I forgot how much I liked NDIA

This particular presentation was about a .338 Norma case for the LW MMG concept.   it is a little different from the previous one I had seen that was for 7.62x51mm.

now the aluminum head is on the outside, rather than being inside the stainless steel body.       am I converting correctly, is 500 Mpa  =  72518.9  PSI?

smg762

From: smg762

2-Oct

Im more interested in the claim of a 75percent heat reduction....what kind of wizardry were they applying to the propellants to achieve this

ZailC

From: ZailC

2-Oct

What were the particulars of that 75% heat reduction?

smg762

From: smg762

3-Oct

They said it was all down to the propellant...didnt talk about it much.

Strikes me as a good method to lower barrel wear with rounds like the 300win mag

JPeelen

From: JPeelen

3-Oct

Numerically, your MPa to PSI conversion is correct.

But keep in mind that there a several methods of measuring  pressures in use (CIP, SAAMI, EPVAT, you name it; not to mention copper crusher versus piezo)  which can yield very different results for thes ame cartridge. Any numeric conversion gives you only a ballpark value.    

poliorcetes

From: poliorcetes

4-Oct

I just have published an article about textron CT cartridge at defensa.com

https://www.defensa.com/industria/revolucionaria-municion-vaina-telescopica

I would really appreciate any comments and above all criticisms

renatohm

From: renatohm

4-Oct

I liked it, but the ammo pics are deformed.

EwingGreg

From: EwingGreg

4-Oct

It is annoying that there are different ways to measure internal pressure.  SAAMI and CIP use different methods, and there are probably other ones used too. 

poliorcetes

From: poliorcetes

5-Oct

yeah, reading it using a smartphone it's what happens. Tomorrow is going to be published the second part

gatnerd

From: gatnerd

13-Oct

Some more NGSW Updates.

1. Encouraging noises continue to be made about fielding NGSW soon, with selection expected Mid 2022

https://www.armytimes.com/news/2021/10/11/the-armys-m4-m16-and-saw-replacement-is-on-its-way/

2. Sig is working to adapt its 6.8 SPEAR rifle into a civilian rifle, and also shows some potential variants such as a 20" and 8"

https://soldiersystems.net/2021/10/11/ausa-21-sig-spear-update/

3. L3 Harris displaying mock ups of its NGSW-FC; revealed they are partnered with Leupold for the project

https://soldiersystems.net/2021/10/12/ausa-21-l3-harris-next-generation-squad-weapon-fire-control/

TOP