gatnerd

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; 523304 views.
poliorcetes

From: poliorcetes

5/9/19

Anyways, how SiG carbine is supposed to tame .270 WSL-like recoil?

EmericD

From: EmericD

5/9/19

poliorcetes said...

Anyways, how SiG carbine is supposed to tame .270 WSL-like recoil?

With a suppressor and in-line stock?

poliorcetes

From: poliorcetes

5/9/19

haha yes. With that. The operator will be able to do rapid fire... if dispersion cone is not important :)

stancrist

From: stancrist

5/9/19

poliorcetes said...

Anyways, how SiG carbine is supposed to tame .270 WSL-like recoil?

It isn't.  Riflemen are supposed to take steroids and lift weights so they get big and strong enough to handle the .270 WSL-like recoil.   ;^)

Related image

poliorcetes

From: poliorcetes

5/9/19

I don't get why they even pretend that they are offering a proposal for IW

Red7272

From: Red7272

5/9/19

gatnerd said...

But, it appears to have a vertical "feed tower" in order for it to be inserted into a mag well on the LMG. If that's the case, I suspect the ammo boxes are going to be unnecessary bulky in pouches, due to the need to accommodate the ~2" vertical feed tower. Similar to the problem with storing AR compatible drum mags.

Perhaps the black T bar thing is a detachable part of the gun, but the belt boxes themselves attach to it in some way that is not apparent?

gatnerd

From: gatnerd

6/9/19

"Perhaps the black T bar thing is a detachable part of the gun, but the belt boxes themselves attach to it in some way that is not apparent?"

That's also a possibility, although I'm not sure how the box would reliably clip into such a small area if its not being inserted into the magwell. 

In reply toRe: msg 50
gatnerd

From: gatnerd

6/9/19

Going back to the SIG NGSW Rifle, I did a little weight estimations.

SSD lists the weight as 8.1lbs, with a 13" barrel. That is without optic or suppressor.

SIG NGSW Weight:

Rifle: 8.1lbs

SIG SRD762 Suppressor = 1.0625lbs

Steiner ICS Optic = 1.74lbs

PEQ 16 w/ Batteries = 11.1oz / 0.694lbs

= 11.6lbs

 

7.62 20rd PMAG = 5.5oz/0.344

6.8 ngsw = 19.2g (assuming 20% less weight then 130gr 7.62)

x20 = 0.847lb

1x20rd mag = 1.19lbs

 

SIG NGSW = 11.6lbs empty / 12.79lbs loaded 

 

So, good news is, recoil is less likely to be an issue. 

 

Bad news is, it's pretty heavy:

 

M4A1: 6.36lbs

PEQ16: 0.563lbs

ACOG TA31 RCO= 16.2oz /1.1lbs

M4A1= 8lbs unloaded / 9.1lbs loaded 

 

 

'M4A2' = 6.5lbs

PEQ 16 = 0.563lbs

Sig Tango 6 1-6x = 25.4oz / 1.5875

Gesselt scope mount = 0.45lb

M4A2= 9.1lbs unloaded / 10.1lbs loaded 

 

stancrist

From: stancrist

6/9/19

Good weight tabulation.  I am still amazed by the "all up" weight of M4 variants, but I guess that's because my military service was with the M1 carbine and M16A1 rifle.

Question on the 6.8 NGSW cartridge weight:  Why assume 20% less than 7.62 M80A1?  I'd think there would be negligible difference, since the 6.8 bullet is 5 gr heavier.

Farmplinker

From: Farmplinker

6/9/19

If it does take box mags, will it be more reliable than the M249 with box mags?

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