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longhorn_92 wrote:

surprise_i'm_armed wrote:On page 1 of this thread, TAM had posted a longish piece which contained this:

U.S. special operations forces, with their own acquisition budget and the latitude to buy gear the other military branches can't, already are replacing their M4s with a new rifle.

Does anyone know what rifle this is?

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SIA

My guess would be either the H&K 416 or the FN SCAR.... not sure?...

casingpoint wrote:How did the Germans handle this problem in WWII?

KD5NRH wrote:

The Annoyed Man wrote:The article mentions "white hot" barrels. I assume that if a barrel glows white hot, the properties of the metal are changed, bore diameters are affected one way or the other, etc., etc.

I'm not entirely sure that gunpowder could actually get a barrel white hot. I've done some blacksmithing, and there's a huge range of red/orange/yellow hot temperatures before white. Then there's the fact that orange hot metal within a foot of your face will get very painful very quickly.

Purplehood wrote:In my experience, E. Afghanistan was fairly moderate for highs and lows of temperature. It reminded me of the Western Slope in Colorado where I grew up. I was right on the Pakistan border and visited some of the outposts. I doubt ambient temperature was the culprit. My guess is that it was simply barrels that could not take the extreme demands for Rate of Fire.

Purplehood wrote:My guess is that the nasty dust in E. Afghanistan does a number on an M4. If you averaged out the number of times I carried my M4 outside the wire, it would come down to about twice a week for the whole time I was there (all day missions). The grunts in the outposts use their weapon daily, hence the requirement for more maintenance (defined as cleaning). I could get away with cleaning my weapon after each mission and not suffer any ill-effects.
BTW, the dust in E. Afghanistan is quite pervasive.

Oct 11, 8:28 AM (ET)

By RICHARD LARDNER

WASHINGTON (AP) - In the chaos of an early morning assault on a remote U.S. outpost in eastern Afghanistan, Staff Sgt. Erich Phillips' M4 carbine quit firing as militant forces surrounded the base. The machine gun he grabbed after tossing the rifle aside didn't work either.

When the battle in the small village of Wanat ended, nine U.S. soldiers lay dead and 27 more were wounded. A detailed study of the attack by a military historian found that weapons failed repeatedly at a "critical moment" during the firefight on July 13, 2008, putting the outnumbered American troops at risk of being overrun by nearly 200 insurgents.

Which raises the question: Eight years into the war against the Taliban in Afghanistan, do U.S. armed forces have the best guns money can buy?

Despite the military's insistence that they do, a small but vocal number of troops in Afghanistan and Iraq has complained that the standard-issue M4 rifles need too much maintenance and jam at the worst possible times.

A week ago, eight U.S. troops were killed at a base near Kamdesh, a town near Wanat. There's no immediate evidence of weapons failures at Kamdesh, but the circumstances were eerily similar to the Wanat battle: insurgents stormed an isolated stronghold manned by American forces stretched thin by the demands of war.

Army Col. Wayne Shanks, a military spokesman in Afghanistan, said a review of the battle at Kamdesh is under way. "It is too early to make any assumptions regarding what did or didn't work correctly," he said.

Complaints about the weapons the troops carry, especially the M4, aren't new. Army officials say that when properly cleaned and maintained, the M4 is a quality weapon that can pump out more than 3,000 rounds before any failures occur.

The M4 is a shorter, lighter version of the M16, which made its debut during the Vietnam war. Roughly 500,000 M4s are in service, making it the rifle troops on the front lines trust with their lives.

Sen. Tom Coburn, R-Okla., a leading critic of the M4, said Thursday the Army needs to move quickly to acquire a combat rifle suited for the extreme conditions U.S. troops are fighting in.

U.S. special operations forces, with their own acquisition budget and the latitude to buy gear the other military branches can't, already are replacing their M4s with a new rifle.

"The M4 has served us well but it's not as good as it needs to be," Coburn said.

Battlefield surveys show that nearly 90 percent of soldiers are satisfied with their M4s, according to Brig. Gen. Peter Fuller, head of the Army office that buys soldier gear. Still, the rifle is continually being improved to make it even more reliable and lethal.

Fuller said he's received no official reports of flawed weapons performance at Wanat. "Until it showed up in the news, I was surprised to hear about all this," he said.

The study by Douglas Cubbison of the Army Combat Studies Institute at Fort Leavenworth, Kan., hasn't been publicly released. Copies of the study have been leaked to news organizations and are circulating on the Internet.

Cubbison's study is based on an earlier Army investigation and interviews with soldiers who survived the attack at Wanat. He describes a well-coordinated attack by a highly skilled enemy that unleashed a withering barrage with AK-47 automatic rifles and rocket-propelled grenades.
The soldiers said their weapons were meticulously cared for and routinely inspected by commanders. But still the weapons had breakdowns, especially when the rifles were on full automatic, which allows hundreds of bullets to be fired a minute.

The platoon-sized unit of U.S. soldiers and about two dozen Afghan troops was shooting back with such intensity the barrels on their weapons turned white hot. The high rate of fire appears to have put a number of weapons out of commission, even though the guns are tested and built to operate in extreme conditions.

Cpl. Jonathan Ayers and Spc. Chris McKaig were firing their M4s from a position the soldiers called the "Crow's Nest." The pair would pop up together from cover, fire half a dozen rounds and then drop back down.

On one of these trips up, Ayers was killed instantly by an enemy round. McKaig soon had problems with his M4, which carries a 30-round magazine.

"My weapon was overheating," McKaig said, according to Cubbison's report. "I had shot about 12 magazines by this point already and it had only been about a half hour or so into the fight. I couldn't charge my weapon and put another round in because it was too hot, so I got mad and threw my weapon down."

The soldiers also had trouble with their M249 machine guns, a larger weapon than the M4 that can shoot up to 750 rounds per minute.

Cpl. Jason Bogar fired approximately 600 rounds from his M-249 before the weapon overheated and jammed the weapon.

Bogar was killed during the firefight, but no one saw how he died, according to the report.