This is intended for people interested in the subject of military guns and their ammunition, with emphasis on automatic weapons.
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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?
Im more interested in the claim of a 75percent heat reduction....what kind of wizardry were they applying to the propellants to achieve this
What were the particulars of that 75% heat reduction?
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
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.
I just have published an article about textron CT cartridge at defensa.com
I would really appreciate any comments and above all criticisms
I liked it, but the ammo pics are deformed.
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.
yeah, reading it using a smartphone it's what happens. Tomorrow is going to be published the second part
Some more NGSW Updates.
1. Encouraging noises continue to be made about fielding NGSW soon, with selection expected Mid 2022
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"
3. L3 Harris displaying mock ups of its NGSW-FC; revealed they are partnered with Leupold for the project