XM-8 rifle test article

Status
Not open for further replies.

hillbilly

Member
Joined
Jul 10, 2003
Messages
3,165
Location
Iowa
http://www.strategypage.com//fyeo/howtomakewar/default.asp?target=htweap.htm



WEAPONS OF THE WORLD: New American Rifle Tests Well



February 17, 2004: The U.S. Army is happy with the initial field testing of it's new M-8 (or XM-8) Assault Rifle. One of the major design features of the M-8 that makes it superior to the M-16 is the way it handles propellant gasses. The M-16 has these gasses going into the receiver, depositing layers of crud from propellant that did not completely burn. The M-8 keeps the propellant gasses out of the receiver and this reduces the cleaning time by about 70 percent. The troops appreciate this. More importantly, the reduced amount of crud in the receiver greatly increases reliability (far fewer rounds getting stuck.) In fact, the M-8 is designed to fire 15,000 rounds without cleaning or lubrication, even in a dirty (like a desert) environment. Troops are not allowed to let their weapons go like that, but this degree of reliability makes it less likely that rifles won't jam in a sandstorm or after getting dropped in the mud. The M-8 barrel and receiver is also of more sturdy construction, making it less likely that the user will get injured if there's something in the barrel when a round is fired. This is not unusual in combat. All you have to do is accidentally jam the barrel into the dirt while hitting the ground or otherwise avoiding enemy fire, and then have to return fire. On an M-16, this can often cause the rifle to, well, blow up in your face. This unfortunate event is much less likely with the M-8.

The M-8 comes with a battery powered sight that includes a red-dot, close-combat capability, plus infrared laser aimer and laser illuminator with a backup etched reticule. The sights on the M-8, similar to those which have been showing up on M-16s over the past decade, make it much easier to hit something. The M-8 is better designed for "ease of use" and support troops who don't handle their weapons frequently will find that they can more easily hit something with an M-8. Tests, using people who have not handled a rifle frequently, have demonstrated this.

Because the attachment points for rail mounted devices are built into the M-8, the sight can be factory zeroed. The M-16, because it has rail mounting hardware mounted on it, requires frequent re-zeroing in the field. This is a feature very much appreciated by the troops. The attachment points allow additional sighting devices to be quickly added to the weapon. A new 40mm, single shot grenade launcher (the M320) will be available for the M-8 and can be quickly installed by troops, without special tools. The M-8 is designed for easy left or right handed operation.

Testing will increase, as more M-8s are available, and the plan is that by early 2007, the first of over a million M-8s will begin distribution to all troops in active and reserve army units. One thing that may slow this down is the army research on the use of a new caliber (6.8mm). The new bullet has shown to have better accuracy and stopping power. While troops would be carrying less ammo with the larger round (25 rounds in the current 30 round magazine), they would require fewer shots to take down enemy troops. American troops today are much better trained in the use of their rifles than they were four decades ago. Automatic fire is not often used, with accurate, individual shots being the norm. The M-8 rifle, and possibly a new caliber, are a reflection of that.


January 29, 2004: Britain adopted the SA80 assault rifle 19 years ago, and has had persistent problems with reliability. Three years ago, Britain spent $140 million refurbishing 200,000 of the 330,000 SA80s on hand. This was to have fixed the problems encountered during the 1991 Gulf War, when the fine desert sand would cause the weapons to jam. Complaints were few until troops returned to the Persian Gulf last year. Now there are a significant number of complaints about the safety catch. In many cases, the Ministry of Defense won't say how many, flipping the safety catch off would leave the weapon still unable to fire. The situation was considered so serious that the Ministry of Defense has hired a contractor to modify the safety catch on all SA80 rifles. About a year ago, there were many reports of problems with rounds not feeding into the rifle from the magazine. This problem was apparently fixed by providing redesigned magazines. There were also complaints about the SA80 in Afghanistan, where British commandoes were often seen using M-16s instead.



January 17, 2004: Someone is building cell phone guns and distributing them through the criminal underground. These weapons first showed up in Europe in late 2000. The weapon is built around a hollow cell phone case. The mechanism is installed inside the case so that by hitting the correct buttons, the cell phone case comes apart. In the top half you can see four .22 caliber (5.56mm) bullets in short barrels that are concealed by the plastic covering at the top of the cell phone. When you snap the cell phone back together, four of the buttons on the cell phone will release a spring loaded firing pin into the rear of one of the bullets, firing it out the front of the case. It's not very accurate, but from a few feet away, a shot in the head will kill, and a hit anywhere else will be felt. These cell phone guns have not yet been reported in the United States. But the FBI, Bureau of Alcohol, Tobacco and Firearms and the U.S. Customs Service have all been briefed on the new weapons, as have all U.S. ports of entry. No one is sure, but it is thought that the cell phone guns were invented, and are being built, somewhere in the Balkans. While they look like cell phones, if you hold one in your hand they are noticeably heavier. For criminals, especially professional killers, such weapons would be useful in situations where people are being frisked for weapons when entering a club, or a meeting with other gangsters. The weapons could also be smuggled into jails to aid in prison escapes. Commandoes and spies might find this device useful as well. The weapons could also be used to hijack aircraft.

January 14, 2004: Later this year, the U.S. Army will equip two brigades with a prototype of the new XM8 5.56mm assault rifle. This will allow for intensive field use of the rifle to work out any deficiencies in the design.
 
Yes, HK did contract for reworking the SA80 rifles... and such rifles are now marked HK.
Sounds very cool, but I understand that they still have issues with reliability. I have emails from Brit troopers that all bost that the SA80's are more accurate that the M-16s.

To me it's like an arguement between Gremlin and Pacer owners...
 
Here's another article on the XM8. This one is from ArmyTimes.com ..
armycover.jpg


Issue Date: March 01, 2004

1 killer weapon
8 things you’ll love about the XM8

By John G. Roos
Special to the Times

LAS VEGAS — About a year from now, the M8 — the Army’s likely new 5.56mm assault weapon — should begin showing up in unit arms rooms.
That’s not official — the weapon is still the experimental XM8; there’s testing yet to be done, contracts to be signed. But if any casino in this gambling mecca would take my bet that this is the American soldier’s next rifle, I’d put some serious cash on the line.

This former soldier, an old 11B, would stake that bet based on tips from sources and firsthand experience — I was privileged to be among the first shooting enthusiasts anywhere to put the XM8 to the test.

That’s thanks to good fortune — and my job as an editor at Army Times Publishing Co. and organizer of the annual “Shoot-out at Blackwater†weapons-testing event in Virginia. The XM8s already underwent arctic tests in February, are now in the hands of troops in Alaska and are slated to undergo testing in the tropics (probably in Panama) in June.

The Infantry Center at Fort Benning, Ga., is currently in the early stages of an eight-week assessment of the XM8 to see how the first prototypes of the weapon meet the small-arms needs of the Army. In addition to soldiers, the assessment will involve Marines, airmen and Coast Guard members.

So far, all of the testing of the XM8 has been open to press coverage. But the senior leadership at Benning recently decided to deny access to reporters to ensure an unbiased assessment environment free of outside distractions, said Rich McDowell, Benning’s public affairs officer.

The XM8 will be put through a final workout in the desert — Arizona’s Yuma Proving Ground is the likely spot — immediately after that.

The Army remains mum about how tests are going, but program officials with manufacturer Heckler & Koch Defense Inc., prime contractor for the weapons, are confident the XM8s will measure up to the challenges of the environmental testing. They’re so confident that they invited hundreds of journalists writing for defense, firearms and related publications to put three XM8 variants to the test during the annual SHOT Show here.

On Feb. 11, about 120 firearms specialists gathered at the Las Vegas Police Department firing range to try out the new carbines.

I was privileged to be the first journalist to fire the XM8 Baseline Carbine. I don’t say that lightly. Two colleagues and I tried to find things that weren’t quite right with the weapon’s design and functioning, but failed on both accounts.

Here are eight cool things shooters will like about the XM8:

1. It’s light. The baseline carbine model currently weighs in at 6.25 pounds (the objective weight is 5.7 pounds), including an integrated sight with infrared laser and illuminator, red dot reflex sight and integrated mount. By comparison, an M4 modular weapon system with rail attachment, backup sights, M68 Close Combat Optic and standard laser/illuminator systems tips the scales at 8.85 pounds.

2. It comes with a cutting-edge sighting system. The XM8’s battery-powered sight houses a red dot close-combat optic that incorporates an infrared laser aimer and illuminator. The shooter controls the sight’s functions through a wireless switch that can be mounted anywhere on the weapon. The sight combines all the capabilities of the separate close-combat optic, AN/PEQ-2 laser and AN/PAQ-4 designator systems normally mounted on M4s.

3. It’s easy to zero. The sight has a backup etched reticle and comes factory zeroed. It retains its zero position through a positive-locking mounting setup.

4. It has no rails. Designers fashioned integral, flush-mounting, metal-lined attachment points on the XM8’s handguard and receiver. Standard 1913 adapters can be mounted on the attachment points so operators can continue to use lights, lasers and other items already in the inventory.

5. It needs little maintenance. H&K officials say the XM8 can fire more than 15,000 rounds without need for lubrication or cleaning, even under the most extreme operating conditions.

6. It’s easy to clean. Unlike the M16/M4 series, the XM8’s gas system doesn’t blow gases and their carbon-fouling elements into the receiver during firing. Instead, about 90 percent of the gases created during firing are vented through a gas port under the front of the barrel; the other 10 percent are used to cycle the weapon. This new design reduces average cleaning time to four minutes, compared with the 14-minute average cleaning time for an M4.

7. It’s tough. Between shooters, H&K officials alternated sticking the carbine in a drum of water and burying it in sand. Despite that treatment and the thousands of rounds put through the weapons at the range, there wasn’t a single misfire or stoppage. The weapon’s cold hammer-forged barrel has a service life of 20,000 rounds, and has blow-out vents to direct energy and gases from a catastrophic chamber failure forward and away from the shooter.

8. It’s ambidextrous. Lefties will find a southpaw-friendly, centrally located charging handle that doubles as a forward assist slide, an ambidextrous magazine release, bolt catch, safety/selector lever and release lever for the multiposition, collapsible butt stock. All shooters will be able to keep their firing hand on the pistol grip while loading, unloading or charging the weapon.

Putting it to the test

Despite the XM8 carbine’s light weight, it feels like the substantial weapon it is. That’s important. Shooters won’t be afraid to use it to its full potential, including using the double magazine as a firing support when shooting from the prone position.

The tested weapons have a cyclic rate of fire of 750 rounds per minute — about average for assault weapons. More important, they have a sustained fire rate of 85 rpm for 210 rounds, compared with 50 rpm for 210 rounds for an M4.

Although the tested weapons had only a semi-auto/full auto selector switch, company literature indicates a two- or three-round burst selector will be available as an option on production weapons.

At 33.3 inches with the stock extended, the carbine’s overall length is the same as a 14.5-inch barreled M4. It felt shorter than that, though, the first time I raised it to my shoulder. My eye was closer to the rear of the sight than I like when shooting, but the weapon’s relatively mild recoil precluded forehead souvenirs. The eye/sight standoff distance will be a bit greater, of course, for shooters wearing ballistic vests and other combat gear.

Trigger pull was sure and responsive. Popping off two- or three-round bursts was no problem and could be done with minimal (though perceptible) barrel climb. The weapon’s ramped cheek rest allows a shooter to get a comfortable “cheek weld†on the stock, and allows the shooter to fire with his head up, rather than from a less natural position necessitated by other types of rear sights.

The all-in-one optics eliminate the need to attach various accessories to a rail or upper receiver. The illuminated red-dot reticle delivers quick target acquisition with both eyes open. More important, the optics retain their zero even after being removed from and reinstalled on the weapon.

The 30-round polymer magazines clip together at two half-moon connecting points. It will be interesting to see how well these stand up under hard use. Then again, metal magazines aren’t soldier-proof.

XM8 program officials plan to field a new bayonet/wire-cutter combo, manufactured by Camillus, with the carbine variant.

Possible improvements

About the only improvement my colleagues and I could suggest would involve integrating some type of ammo-level indicator — either a numeric device or a graduated bar — into the optical sight so the shooter would know precisely how much ammo remains in the magazine(s). The clear-sided magazine now makes it possible to do this with a glance, but that requires the shooter to look away from the enemy’s direction.

The Army is considering adding some type of lifetime monitoring system to each weapon, Army Times has learned, so data such as the number of rounds fired during a particular timeframe or over the entire life of a weapon could be retrieved by waving an electronic reader over the weapon. The system might also include the ability to inventory the weapons with an electronic reader.

The bottom line: The XM8 looks like a new assault weapon that will be arriving soon at an arms room near you.

From what I’ve seen, you won’t be disappointed.

John G. Roos, a retired Army officer, is the editor of Armed Forces Journal. He organizes an annual weapons “Shoot-out at Blackwater,†featuring the latest weapons, ammunition and related products for the military. Staff writer Matthew Cox contributed to this report.

Oh, and here are some XM8 videos, too..

http://www.armytimes.com/story.php?s=1-292925-xm8_100.php
 
No one has yet to answer my question about the XM-8 and reduced lethality- it seems to me that a 12" barrel won't provide enough length to get the 5.56mm to fragment at any distance beyond 50 yards or so.
 
The M16 isn't going anywhere until someone builds something good enough to replace it. And thats not going to happen any time soon.
 
Deers in the headlights. Like it or not, that's a Freight Train coming down the tracks. This has more to do with politics and jobs than it has to do with engineering and ballistics.

Me, I'd like to see the 'baseline' weapon with a 16" barrel. Call it a CARBINE like it rightfully is. The 'sharpshooter' version should have a heavier 20" barrel and the 'submachinegun" version should sport the 12.5" barrel. What is the use of a shorter barrel? I saw they wanted a 9" Barreled version as well.... WHY!? Maybe a folding-stock version of teh SMG instead, but even 12.5" is marginal.
 
I was under the impression that HK developed the HKM4 as a stopgap measure to try to solve some of the M4 problems that had been cropping up in Iraq. Of course it's only stopgap if the army adopts the XM-8.

Face it--sooner or later all militaries will adopt compact, even bullpup designs for small arms and there is a general agreement among the world's firearms designers that the Stoner gas-tube system creates too many problems for the advantages it offers. Like it or not, Kalashnekov's ideas have proven to have more advantages in field use than Stoner's. And as always, traditionalists will not like it. They didn't like it when we switched from the M14 to the M16. They didn't like it when we switched from the M1 to the M14, they didn't like it when we switched from the 1903 to the M1, and they so disliked it when we switched from the 1903 to the clearly superior 1917 (too "ferrin" lookin') that we switched back to the inferior 1903. People in general dislike change and military people and firearms afficianadoes seem to dislike it more than most.

I await the inevitable fiery poop storm.
 
hrmm.. well, the article mentions that it *is* backwards compatible with the current rail system, the barrel can be swapped out to something more reasonable for general issue, and Badger's pictures showed that the ergos aren't as big a step down from the AR as the G36 was. I'd still like to see those mags put on a diet though... bulky!

Okay Badger, as promised, I'll now concede it's at least not a step back, and heck -- looks like it has a fair amount of promise to boot. And it looks cool, which I guess is as important as anything these days. :)

Anyhow, I still think it doesn't offer much that the current system doesn't, and it's a pointless change done for politics and lining some decision-maker's pockets. But hey, if it happens I won't scream too awful loud I guess. Barring unforeseen problems during the adoption process, those wonderful guys are getting a decent poodleshooter out of it all.

-K
 
If they're going to go with such a short barrel, they should rechamber the gun for the new 6.8mm round.
 
Not the 6.8, the 6.5 Grendal. And I think that won't happen anytime soon, if at all. There is simply not enough call for a new round. Besides, you aren't just talking the M16, you are talking virtually every free army in the world, the M249, etc. Given how many 308's are out there too, this will bring about a third caliber.
 
They've been calling for a new round since Somalia. And Afghanistan, and Iraq. Enough that the Special Forces guys went and got a round developed without much help from the Army.


And we don't go sharing ammo with the rest of the free world, they just have weapons chambered in the same round for NATO reasons. We fought World War 1 and 2 with different-chambered rounds from the rest of the world, and everything came out ok. It complicates things, but not THAT much. And it'll be a while before 5.56 got out of the system if they switch. Probably 5 or 6 years minimum. The 7.62 would stay, because it does what it needs to do just fine.
 
At least with the XM8 they CAN upgrade the caliber. Just a couple MINOR part changes instead of a whole new upper assembly, gas tube and the like. Glad to see that the first ones performed well.
 
Changing calibers takes much longer than 5 or 6 years. It takes decades. The 5.56x45mm is here to stay like it or not. Even if the entire active Army, Navy, and Marines swith over, we'd still have the guard and Reserves. It wasn't until, what, the 80's before the 30-06 stopped being used.

As for those wanting a better caliber than the .223, they already have it! What's wrong with the 7.62x51? Don't we have, what, 200,000 of them sitting in armories gathering dust? It's only slightly heavier than the M16A2 and packs much more punch per round. I'd like to see an optimized round developed for the 308 with a VLD bullet of around 165-180gr or thereabouts. One shot, one kill.

IIRC, the Special Forces already are aware of this fix and are using it where necessary. Next thing you know, they'll be pulling trapdoor Springfields out.
 
Status
Not open for further replies.
Back
Top