Army NGSW competition (guns/ammo update)

14,587 Views | 55 Replies | Last: 5 days ago by 74OA
clarythedrill
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AgLA06 said:

Here's the only thing I don't get about this.

In a world where an EMP is a large threat, are their BUIS on these weapons? Because I have a feeling a computer controlled gun can eventually be jammed, hacked, EMPd, etc. and as a soldier it wouldn't be fun to realize your weapon is nothing more than a paper weight.
As long as there is a rail system on the rifle, and there is if you look at the pictures, you can add a BUIS.
74OA
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AgLA06 said:

Here's the only thing I don't get about this.

In a world where an EMP is a large threat, are their BUIS on these weapons? Because I have a feeling a computer controlled gun can eventually be jammed, hacked, EMPd, etc. and as a soldier it wouldn't be fun to realize your weapon is nothing more than a paper weight.
It has iron sights. Also: "Even in its most degraded form, no computer, just glass, it uses a 1-8x variable optic that exceeds the performance of the existing M68 and ACOG optics now fielded, said Maj. Alexander Kipetz, NGSW-Fire Control assistant product manager."
74OA
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AG
Here's a great clip on the revolutionary smart optic. Answers most any conceivable question.

SIGHT
74OA
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First issue coming in '23. CLOSE COMBAT
Eliminatus
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74OA said:

First issue coming in '23. CLOSE COMBAT
Good stuff. Count me as one of those who think an upgrade was needed in some circumstances.
74OA
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Eliminatus said:

74OA said:

First issue coming in '23. CLOSE COMBAT
Good stuff. Count me as one of those who think an upgrade was needed in some circumstances.
It's the new sight that's the revolutionary part of the upgrade and it's immediately compatible with the Army's other infantry weapons, too. The clip on it I posted just above is worth a watch.
nortex97
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AG
Interesting thread with some links regarding the Sig/NGSW stuff.

74OA
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According to PEO Soldier, some of the improvements of the 6.8mm over 5.56mm include:

  • Dramatically improved hard target performance.
  • Improved, consistent effects against soft targets and close-quarters battle performance.
  • Significant increase in range of consistent effects against all targets.
  • Extremely effectiveness against a wide range of targets a true general-purpose round.

UPDATE
74OA
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"The heavier round provides better penetration and outperforms the 7.62 mm round used in the M240 machine gun system, typically found at the platoon level. The increased energy of the round also allows shooters to penetrate barriers that deflected 5.56mm rounds, as demonstrated in a live fire during which an Army Times reporter participated in September at Aberdeen Proving Ground, Maryland."

2024 DELIVERY
CT'97
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I'm not really interested in quotes from program managers who's OER's are based on the system appearing to do it's job.

Long time SNCO war fighters who look at it and say it's a mistake are who I put stock in. Seems that replacing the M249 with this and then the M240 with a heavier barreled version with a higher sustained rate of fire would be a good option.

I find it hard to believe that the heavier recoil, fewer rounds, and overall heavier weapon is going to be such a jump in capability that it justifies the change.
nortex97
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I'm not an expert at all but it is intriguing;

Quote:

Multiple XM250 6.8mm rounds drilled holes through cinder blocks and struck a human silhouette target while only a single 5.56mm round managed to damage, but not fully pass through the cinder blocks.

"That's turning cover into concealment," Lt. Col. Micah Rue, product manager for soldier weapons at Program Executive Office-Soldier said at the time.

The current 10-year contract for the Sig Sauer weapons, builder of both systems, has a ceiling value of $4.5 billion and the Vortex Optics/Sheltered Wings XM157 fire control cost ceiling is set at $2.7 billion.
It would be 'interesting' if some friendly folks like the Ukrainians or Israeli's etc. got to test it out in the real world conflicts they are operating in (just as examples). Most of the added weight is if you carry the same quantity of rounds, and the optic, right?
Ulysses90
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AG
1. The NGSW rifle has a 20 round magazine of 6.8mm ammunition which reduces a Soldier's basic load from 210 rounds (7 magazines) of 5.56mm to 140 rounds of 6.8mm. Ounces equal pounds and pounds equal misery when you have to hump them.

Arithmetic dictates that NGSW **must** deliver a 50% increase in the Probability of Hit over currently fielded M4 carbines to match the lethality of the current 5.56mm rifles. Every round that misses has zero lethality but at the same time, Gretsky's maxim is also true.

Where's the data to show that NGSW (and Vortex optic) equipped Soldiers are 50% more likelyto hit the sametargetthan a soldierwith an M4? How does the Army's use of suppression fire change with 33% less ammo per weapon? What if...you put the Vortex optic for the NGSW on an M4? Would the M4-Vortex system have a similar Probability of Hit to the NGSW? Don't count on PEO Soldier Lethality allowing such an experiment to be conducted because they don't want to know the result.

2. The Marine Corps' 2018 Rifle Marksmanship Lethality Capabilities Based Assessment contained the following statements on the first page and the first paragraph of the 130 page assessment.

"Following a 2004 deployment to Iraq, ...the (2nd Marines) regimental gunner asserted that the "main problem is that Marines need to work on marksmanship". This sentiment was expounded upon by the then-CMC, General James T. Conway, "It's not the round, it's the shooter. If we hit them [enemy combatants], we put them down. The problem is we're not very good at hitting moving targets"

3. Historically, >90% rifle engagements take place at distances <300m. If we just concede that the 6.8mm cartridge is preferable to the 5 56mm at ranges beyond 300m, does that justify moving to the 6.8mm? Does Leavenworth or MCOE have data or simulations to indicate that a significantly larger proportion of future infantry engagements will be at >300m?

4. Few existing small arms training ranges can accommodate the larger SDZ of the 6.8mm cartridge. 5.56mm and 7.62mm ammo have an SDZ of 3600m and the .50 BMG is 7200m. The new 6.8mm cartridge is probably going to be closer to 7200m than to 3600m given that it is still supersonicat a range of 1000m. The Army has 659 small arms (weapons smaller than .50 caliber) across the globe that are supported by TRADOC central funding for operation and sustainment. Many of these ranges were designed to support only a 3600m SDZ. The Army has no real estate budget to increase the size of small arms ranges to accommodate the new 6.8mm cartridge. The 6.8mm cartridge also cuts the useful life of AR500 steel plate targets almost in half. The options for plate targets will be to replace them twice as often or buy far more expensive AR600 steel plate.

5. The 6.8mm chamber pressure is higher than either the 5.56mm M855A1 or the 7.62MM M80. That means increased heat which means increased barrel erosion and shorter fatigue life. The barrels of 6.8mm weapons, particularly machine guns, will wear our a lot faster than 5.56mm or 7.62mm barrels.

My opinion doesn't count for anything but I believe that the Army has concocted a vision of the future enemy where Tony Stark level body armor demands a 6.8mm cartridge.
Diyala Nick
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Fantastic and detailed post.

My $.02 is limited to engagements in Iraq, all of which were in an urban setting (so I discount my own opinion a lot on this)….that said, the question for me is, will the individual soldier not carrying a crew served weapon be expected to suppress the enemy or not? If not, you need to be damn clear that you don't pull a trigger unless you have you have a target in your sight picture. However, if they are going to suppress, going from 210 to 140 rounds is a really bad tradeofff.

I suspect the right answer is more M249 like weapons per platoon, and then more individual riflemen that create effects like squad designated marksmen. In my experience, the individual 11B, 0311, 19D, etc slinging rounds wildly out of an M4 created a lot of noise but little effect, and it happened all of the time. Contrast that with a good 240 gunner or SDM that has a big impact, and more specialization seems like it could be a good thing.
nortex97
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I again don't really know enough about this stuff to have an opinion but the concern about body armor moving forward seemed valid, imho. Certainly, the Chinese and Russians are using it a lot more than…our recent foes have in infantry engagements.

https://www.americanrifleman.org/content/return-of-the-rifleman-the-next-generation-squad-weapons-program/
Quote:

The cartridge SIG developed for its winning NGSW firearms has been designated as the 6.8x51 mm Common Cartridge (CC). As can be inferred from the "51 mm" part of its designation, the cartridge's case is the same length as the 7.62 NATO, necessitating an "AR-10"-size firearm platform. The case is almost the identical diameter as well, meaning that capacity in a box magazine is the same as the 7.62 NATO cartridge. While the Army hasn't revealed the exact ballistic performance of the new cartridge, the 6.8 mm CC delivers more velocity than the M855A1 with a bullet more than twice as heavy. The Army claims that the new chambering is superior to both the 6.5 mm Creedmoor and 7.62 NATO at ranges up to 800 meters and that it can defeat Level III body armor with non-armor-piercing ammunition out to 600 meters.

The new cartridge is not to be confused with the 6.8 Remington SPC, another cartridge developed at the behest of the U.S. military. Designed in the early 2000s, the SPC has the same overall length as the 5.56 NATO, meaning that existing M4 and AR-15-type firearms could be adapted to use it.

Since defeating body armor comes down, in large part, to velocity, every effort was made to get the maximum performance out of the new cartridge. The result was a chambering that operates at very high pressure. The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) specification for the cartridge is 80,000 p.s.i., or about 30 percent higher than the operating pressure of similar cartridges such as 7.62 NATO or 6.5 mm Creedmoor.
Anything they settled on was bound to be controversial, just as doing away with the M1 and M14 was, decades ago.
Diyala Nick
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AG
Defeating light cover like a car or thin walls is also a big deal in urban engagements (7.62 does this well, 5.56 does not).
74OA
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The LATEST.

Also came across this on the weight of the new round: "SIG Sauer developed an innovative thinner, lighter hybrid brass/alloy cartridge to pair with 6.8-millimeter projectiles, reducing overall weight by 30 percent. The new combination yields rounds that weigh about the same as the 5.56mm ammunition the M4/M249 fire. But it packs a much heavier punch, able to lethally pierce body armor close-in and at longer ranges."

NGSW
74OA
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UPDATE
Ulysses90
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$2.7B/250,000 = $10,800 per XM-157.

That's a lot for an optic, almost 6x the peice of a Trijicon RCO. It makes me want to ask whether the XM157 comes with a "can't miss" guarantee for targets at 300m or less.

74OA
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Ulysses90 said:

$2.7B/250,000 = $10,800 per XM-157.

That's a lot for an optic, almost 6x the peice of a Trijicon RCO. It makes me want to ask whether the XM157 comes with a "can't miss" guarantee for targets at 300m or less.


That likely includes training, maintenance, test equipment, spare parts, etc. the usual support elements of any contract.

Dunno about "can't miss" guarantee, but the optic's capabilities shown in the video linked up top are impressive and we're talking at 700 yards. Worth watching.......
nortex97
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Some decent feedback from soldiers. Speculation as to lightly armored vehicles like BTR's etc being at risk. $13/round is…insane, still. (Happy to report new brass 55 grain 5.56 can be found in the sub 40 cent range again.)



74OA
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This says $4 a round. I imagine the price will come down significantly once production volumes ramp up.

FURY
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