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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 Phase 2 Consolidation and info   Small Arms <20mm

Started 30/8/19 by gatnerd; 553878 views.
RovingPedant

From: RovingPedant

4/6/22

poliorcetes said...

I wonder if part of the hardware responsible for the funcionalities of a smart sight could be migrated outside of the rifle (mainly on the body or helmet of the user)

With the intention of making it lighter? I think most of the heavy bits need to be boresighted to the rifle to be effective, with only the computer and the environmental sensors that could be mounted somewhere else.

Then splitting it up means that you have to tie the two parts back together either physically (tying you to your rifle) or wirelessly (meaning that you are now constantly emitting). which seems less desirable than making your rifle slightly heavier.

EmericD

From: EmericD

4/6/22

poliorcetes said:

Now the probability of hitting a moving target at 600m is not abysmal anymore, and supression derived for very close fails is going to be a thing

I'm not really convinced that the FCS will really help to hit a moving target at 600 m.

First, because the "acquisition sequence" (detection / ranging / aiming / firing) will take several seconds, second, because the round will still need ~1 second of flight to reach the target.

But against a visible, static target (something very rare on the battlefield), the FCS will be a huge game-changer.

Anyway, congratulations to the US Amy for selecting the .276 Pedersen as its new service cartridge, 90 years after its first rejection!

Apsyda

From: Apsyda

4/6/22

Is she firing the steel baseplate ammo or the brass cased ammo?

I've seen a lot of videos on line where the shooter is talking up the soft recoil of the XM5, but is only shooting the softer brass cased ammo.

stancrist

From: stancrist

4/6/22

Apsyda said:

Is she firing the steel baseplate ammo or the brass cased ammo?

Brass cases.

stancrist

From: stancrist

4/6/22

EmericD said:

Anyway, congratulations to the US Amy for selecting the .276 Pedersen as its new service cartridge, 90 years after its first rejection!

Actually, the .276 Pedersen was a 7mm cartridge, not 6.8mm.

However, the Chinese were 115 years ahead of the US Army.

6.8x57 Chinese Mauser

stancrist

From: stancrist

4/6/22

EmericD said:

This "low recoil & practice" 6.8x51 mm fired from the M5 is delivering as much impact energy above 500 m as the 7.62 mm M80 fired from a M14, with 40% less impulse.

So, that could explain...why SOCOM resumed it's 6.5 mm CM program.

I don't follow.  How does it explain why SOCOM resumed work on the 6.5 CM program?

Farmplinker

From: Farmplinker

4/6/22

The 6mm Lee cartridge will rise again!

stancrist

From: stancrist

4/6/22

I think it's a pity that 6mm Navy didn't get perfected and adopted by the Army, too.

Imagine how much different the evolution of US military small arms might've been.

6mm Lee Navy - What If? by Nolo84 on DeviantArt

poliorcetes

From: poliorcetes

5/6/22

I concur on the problems derived from emission, but certain technologies can be at the same time reliable and not detectable beyond, say, 20m

If you get the display part of the FCS system outside of the FCS in a modular way, then it could be served on a helmet. Maybe 200-300 grams could be saved, I'm not sure.

I'm aware that it is not doable on the short term. But beyond that, weight savings are going to be decissive

poliorcetes

From: poliorcetes

5/6/22

I guess that the absence of a electronic trigger is already a bottleneck. A second one would be the pairing with external sensors that provide target detection and collaborate with the firing solution.

OTOH there is a difference between an aware and unaware moving target. The former will risk as less as possible, and thus the best that it can be done is to supress them with close supressive fire.

And for that purpose, a much more precise IW is going to be revolutionary in suppressive capabilities. You teached us a thing or two about suppression modelling a while ago ;)

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