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The M855A1 - the "Green Bullet"

The new, reputedly more environmentally friendly M855A1 5.56mm bullet for the services is being touted as a success story.  One of the major aspects of the "greeness" is it uses a copper core vice lead.  Well and good, if it works.  My interest, aside from an interest in the troops having effective weapons is... does this mean we'll see the old stuff surplused out?  If so... wheeeee!
'Green bullet' as effective as M855 round - consistently
May 8, 2011

In-Depth Coverage By C. Todd Lopez

ABERDEEN, Md. (Army News Service, May 6, 2011) -- Since June, the Army has fielded about 30 million of its new 5.56 M855A1 "Enhanced Performance Round" in Afghanistan.

The cartridge, sometimes called the "green bullet" because it has an environmentally-friendly copper core instead of the traditional lead, has been getting mostly good reviews in the 11 months since it first deployed to Operation Enduring Freedom.

"The vast majority of everything we've got back from the field is positive," said Lt. Col. Jeffrey K. Woods, product manager, small caliber ammunition, during a "media day" at Aberdeen Proving Ground, Md.

During the day-long event, reporters learned the benefits of the new cartridge, witnessed a demonstration of the round, compared to the round it is designed to replace, and had the opportunity to fire the round from both an M16 and M4 rifle.

Perhaps the biggest plus of the M855A1 "enhanced performance round" is the consistency it brings to the fight -- more so than the 5.56 M822 round it is designed to replace.

Woods and other officials were reticent to talk specifically about the effects of the new bullet, or any bullet, on a "soft target" -- a euphemism for enemy personnel. But what they made clear was the M855A1 is at least equal to the M855 on a soft target -- but that it did damage with more consistency.

The M855 is a good round, Woods said, but it is "yaw dependant." Like all bullets, it wobbles when it travels along its trajectory. Its effectiveness depends on its yaw angle when it hits a target. Not so with the M855A1. The new EPR is not yaw-dependant -- it delivers the same effectiveness in a soft target no matter its yaw angle.

"On M855's best day, with that great performance that you will see, you're going to see that type of performance out of the EPR -- but you will see it every time," Woods said.

The EPR cartridge is the same length as the M855 that it's designed to replace, though the bullet it contains is about 1/8 of an inch longer. The weight and shape of the EPR is also the same as the M855, so it fits anything an M855 fits -- including the M16 and the M4 it was designed for.

The bullet itself has been redesigned completely. It features a larger steel "penetrator" on its tip, that is both sharper than what is on the M855 and is also exposed. Both bullets feature a copper jacket, but the EPR's jacket is "reverse drawn" -- part of its manufacturing. Perhaps the most notable feature of the EPR is that its bullet features a copper core, verses the M855's lead core.

There's also a new propellant in the EPR, designed to enhance its performance in the M4 Carbine rifle -- what most Soldiers are carrying today in Afghanistan.

The M4 has a shorter barrel than the M16 rifle, and barrel length is directly related to a bullet's velocity.

"The M855 leaving an M16 had a higher muzzle velocity than when it left the M4," Woods said. "Because the M16 is the longer barrel, you get the full burn of the powder, pushing a bullet to its maximum velocity before it left the barrel."

On an M4, however, the M855 bullet might leave the barrel before its powder is completely burned -- that means the bullet isn't getting the full benefit of all the powder contained in its shell and an increased muzzle flash.

"A longer-burning propellant is still burning ... when the round is leaving the barrel and you are going to get a brighter flash, which is obviously not good for Soldiers," Woods said.

Both of those issues have been addressed with the M855A1.

The SMP-842 propellant in the EPR burns quicker, ensuring less muzzle flash in the M4, and also meaning improved muzzle velocity.

The performance of the EPR against soft targets is the same as that of the M855 -- but it is more consistent. The new round is also "superior to 7.62 M80 against soft targets," Woods said. But at the same time the new "green round" is more Earth-friendly than both the M855 and the M80 -- it is also more effective than either of them against hard targets.

A test fire an Aberdeen Proving Ground range pitted the M855A1 round against the M855 and the M80 in multiple weapons -- the two 5.56 rounds in both the M4 and the M16, and the 7.62 M80 round in an M14 Enhanced Battle Rifle. All three rounds are use today.

In all test firings against a sheet of 3/8-inch mild steel plate at 300 meters, the M855A1 came out on top.

Test center video also showed the EPR to be equally superior against concrete masonry units -- similar to cinder block. The M855A1 was able to penetrate such a block up to about 75 meters with the M16, and up to about 50 meters with the M4. The M855 was unable to penetrate the blocks at those ranges.

Wood said Soldiers have been told to turn in M855 cartridges and switch now to EPR. In February, he said, was the first time there's been more expenditure in theater with the EPR than with the M855.

The round is effective, Woods said, and testing at Aberdeen has shown that to be true -- against realistic testing targets. But the round can't be effective against enemy combatants unless Soldiers use it in their weapons -- and they need to trust that it works before they will want to use it.

Staff Sgt. Jason Hopkins, of the Maneuvers Center of Excellence, Fort Benning, Ga., has served four years in Afghanistan and two years in Iraq. He's seen combat, and confirms that while there he's used his weapon against "soft targets." He was one of the Soldiers at Aberdeen who test fired the new round -- and says he's convinced.

"We were a little skeptical -- like any change in the military, a little skeptical," Hopkins said of the EPR. "But coming up here and shooting it and seeing the performance of it -- I'm sold on it. The trajectory and the ballistics are just as good as the M855 and the penetration is far superior to the M855. It looks like just a more consistent round. With the M855 you may not always get the same thing -- but everything we've seen with this EPR has been dead consistent every time."

As far as the new round's accuracy, Hopkins said, "It's on par if not better."

Woods said testing shows the EPR does produce a tighter shot group -- by about 2 inches at 600 meters.

As far as "stopping power" of the new round, Hopkins clarified what that term means to him -- and confirmed his faith that the round would do its job when he might be required to use it.

"Stopping power is incapacitation of a target so he cannot engage me or continue his mission," Hopkins said. "I haven't used the EPR in that situation yet, but I've used the M855. It's been effective. It's an effective round. But I truly believe the M855A1 will be more consistent."

Private 1st Class Scott Lafferty, 1st Brigade, 82nd Airborne Division, has served once in Iraq. He was also a tester at Aberdeen. When he talks to other Soldiers about the effectiveness of the round, he said he's going to tell them what he learned during his test experience.

"I'm going to tell them ... how we've shot both different kinds of rounds and how the M855A1 is superior and they can test for themselves and find out," Lafferty said. He said that a weapon's effectiveness is largely dependent on a Soldier's training, but added "I am confident the bullet will do what I've seen here today, and yesterday."

 

20 Comments

Interesting, but the write up is so wonderful I have to ask if they're blowing smoke up my nether regions...  That whole emphasis in "consistent."  Also, I'm not impressed with performance against steel plate - we need someone to do the equivilent of the Hatcher tests if we really want to talk about effectiveness against soft targets.
 
I find it truly special that some people are STILL willing to believe information coming out of FedGov.  I would expect that front-line troops who have had this inflicted upon them would be a more reliable source of information if they were able to speak off-the-record where they would be less likely to be punished for "insubordination"...
 
I decided not to editorialize... I figured the commentariat would.

It's an Army News Service article - you were expecting something less than a Public Affairs-ish write up?  Of course you weren't.

S'okay, I'll help put their story out, and then let the Borg Collective gnaw on it and we'll see what's left.
 
The only criteria should be is it the best possible round that will kill bad guys?

All the "green" crap is not worththe bones of one American soldier, so forget about any consideration at all of that foolishness.

Our soldiers (sailors, airmen, Marines, etc) deserve the most lethal and effective rounds money can buy.  Any "green activist" or cheapskate Congresscritter who thinks otherwise is invited to visit the local recruiter and sign up and use less than the best with their butt on the line!
 
One other thing they left out:  the cost of the new round vs the old one.  Anyone checked copper prices as compared to lead lately?

I seem to remember them banging this thing about way back in 2004 or so...IIRC, the M855 cost Uncle Sugar around $0.005 - half a cent - each back then.  The 'green bullet' they were talking about at that time was something like $0.02 each.  Four times as much.

When you start talking the hundreds of millions of rounds that the DoD buys every year, that starts to add up.
 
As a frustrated *Bidnezman*, I'd like to see the configuration on them draw presses. That reverse draw process puts the whole copper-cup drawing process on its head... Plus, instead of pressing lead plugs in the aft of the projectile, one now has to press copper plugs in the aft, but from a forward configuration in the press.

You should all see the old SS109/M855 press process. The lead comes into the factory, in the form of large lead wire spools. The lead is usually salvaged from recycled car batteries, and drawn into wires. The lead wire is then sliced, just like little vienna-sausages, and the resulting plugs pressed behind the steel cores, inside the copper-jacketed drawn cups. Anyone follows?

Michigan Rivet, afterward known as MRC Industrial Group used to have the steel core market cornered. Sadly, they have gone belly-up as I can see: HERE. If I were to guess, ATK has gobbled-up all the machinery, and incorporated it to their little fiefdom in Lake City

Behold: THE M855A1
 
Oh HL: The Ex-Works price of the old M855 was 155.00 USD per Thousand.  The M193 was around 127.00 USD per Thousand.  And the 9x19mm was around 85.00 USD per Thousand.
 
John (NTA), I notice an appropriate edge in your writing of the truth. If we're going to War, do it RIGHT!  *Declare it!* The Nation goes to war, not just the Military. You never go to War with an arrogant or "half-fast" attitude.

John (NTA), the last paragraph, 9 May 2011, 11:25AM, stands as written, with one exception. The Constitution defines our Government as a 3 co-equal branches of the Government. Since war making rests with only TWO branches of Government, your final paragraph applies to both the Executive and Legislative Branches, equally. This applies to both the present and former office-holders, because there is no statute of limitations, depending on approach, for some of this.

John, The Armorer, this is the point in time, when you start kicking the tree to shake loose your favorite group, "Social-Elite". Your goal is getting them out of their comfort zone and some kind of role, Serving This Great Nation.
 
 
They will probably spend a ton on that right before they adapt the CAR in .308
 
Grumpy - I just knew that  given the right goad, Boq Da Bidnizman and others would show up.
 
Well ... green lead free ammo may be fine and good for the Army, but Jarheads will just keep the new SOST ammo thank you very much. Just wish there was more in circulation. Darn ammo seems to just slip through the fingers once the taliban shows up to the party.

 
...it has an environmentally-friendly copper core

Wait for the law of Unintended Consequences to kick in. None of the "environmentalists" who screamed at the Congers to get the nasty lead out of the evil bullets actually knows squat about the environment -- they're the same poitical activists who think supermarkets manufacture meat in the back of the store.

Want to kill a tree in a few weeks? Put a copper nail -- or a copper bullet -- into it.

 
Copper kills trees?  Ruh-roh... the backstop is pretty woodsy...
 
So, you guys are telling me itty, bitty depleted uranium rounds are out?

Damn.
 
 Bill, I remember seing a back of the envelope calculation on Ethanol production in Illinois. If they put all the plants under construction, and proposed on line, the water consumption would be so large there wouldn't be a drop for any other use in the entire state. Unintended consequences indeed.

One day the ecomaniacs might talk with an Engineer or two about what they want to propose. I doubt it will happen, though. And, if they did, we would miss all the fun of ridiculing them for their idiocy.

Personally, depriving Chicago of all its water supply would be fine with me. The only condition I would place on it is they don't allow anyone to leave that corrupt paradise Daly and his lot have produced. Maybe we could do it with San Francisco, Sacramento, and few other Libtard pardises as well.
 
I looked at Boq's picture "Behold: The M855A1"

 Those cartridges *look* dangerous-er, and they are 8.5" OAL on my computer screen.
Brady will be crapping their pants [even more] about civilians getting any.

Erik in Colo.
 
Ruh-roh... the backstop is pretty woodsy...

Jacket peelings on the ground shouldn't be a problem, unless you've got about a half-inch layer of it. Injecting a solid chunk of it into the trunk and letting it oxidize is what kills the proto-Ent.

A side benefit -- if you don't have access to dynamite -- is that the copper will also destroy the tree's hair roots, making the subsequent stump removal a cinch.

 
The funny thing is that copper will end up being more of a threat to groundwater than lead.  Once lead forms a oxidized layer on the outside it is for all practical purposes chemically inert in the backstop, soil, tree or wherever it ends up.  Copper is the gift that keeps on giving (chemically that is).   
 
Armorer, I missed your comment until today, but it was good, no *GREAT*! One thing, don't forget "goad" is both a verb and a noun.  
 
If that is the steel at the tip you won't see it available as surplus.

Buy all the old stuff you can.