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Eberlestock Model 11 Stealth Rifle Chassis Sniper System

Killer-M | On 24, Dec 2012

You may be an enthusiast or an industry professional, in either case there’s very little that can compare with the Remington 700 R5 spec barrel for reliable, incredibly accurate system, that’s under $1500! There’s a small company out of the states that now offers the perfect chassis system that has us all excited. Recently they have been very well received for their back packs, however their roots are clearly in their “stock”{ system and holding true to their roots they have released their latest offering , the Eberlestock Model 11 Stealth Rifle Chassis system! Folded it’s the shortest sniper system in the world!

Their philosophy is that rifle stock is one of the most important components of a firearm. A stock with the right geometry, the right ergonomics, and precisely made parts in the right places, combined with a good quality commercial-off-the-shelf rifle, can give exceptional performance. Given the level of quality and reliability that are found in rifles produced today, the idea is not to spend thousands of dollars on a custom rig in order to obtain a highly accurate precision rifle.
M11-fold 2-sm

Eberlestock states that their rifle system, shot with factory loads, out of the Stealth Chassis, will systematically shoot half-minute groups! They attribute all of this performance to the Stealth Chassis system, but they certainly have taken a good measure of error out of the equation and believe that the M11 provides you with the perfect man-to-machine interface. And of course, it needn’t be said that this chassis is also meant to bring a custom rifle up to its full level of capability.

Eberlestock-Model-11-Stealth-Rifle-Chassis-sniper-system-based-on-remington-700-308-winchester

They make no apology that this chassis is not for everyone. Simply put, it is what it was meant to be; it is simple yet sophisticated. Cut out of billets of aluminum, they achieve great accuracy through a considerable amount of time spent by each and every part on state-of-the-art milling machines, cut to exacting tolerances. Materials and components are appropriately chosen for their role in the overall structure, and all aluminum parts are finished in hard anodized field colors.

M1ASPE-Stealth-Chassis-Folding-Perf-Mount-Forestock-Dry-Earth-Mounted-Remington-Model-700-Short-Action-308

M1ASPY-Stealth-Chassis-Folding-Perf-Mount-Forestock-in-Urban-Gray-MER-Rail-Clamps-Perf-Picatinny-Rails-Remington-Model-700-Short-Action-308

Simplicity: Form following function

Their focus is on simplicity, reliability, and accuracy, with just the right features to give you a versatile platform and an excellent interface with your rifle. Eberlestock has been at work on this project since the early 2000’s, when we developed one of the industry’s first modular chassis systems.

M1ASSB-Stealth-Chassis-Folding-Slick-Forestock-Stealth-Black-Mounted-Remington-Model-700-Short-Action-308

M1ASSB-Stealth-Chassis-Folding-Slick-Forestock-Stealth-Black-Mounted-Remington-Model-700-Short-Action-308-002

The Stealth Chassis can be configured in several ways, to allow you to choose the version that meets your preferences.  Options include folding or fixed stock, solid or perforated forestock  and long or short action.  If you like the clean look of the solid “Slick” forestock  but want the option of adding Picatinny rails, you can use our proprietary clamp system.  Or, if you want to set up your rig with fixed components that you’ll always leave in place, you can choose the perforated forestock with bolt-on rails. Or if you prefer the look of the perforated stock but want to easily be able to slide components on and off, choose the perforated forestock with the clamp system.

eberlestock.com

Is a Remington 700 in 308 considered long or short action?

The .308 is a short action cartridge, but has been sold in both long and short actions. It is a shortened version of the 30-06 case, and as such, will feed fine. A long action can feed anything based on the same parent case. The 308 is a shortened 30-06. The 270 is a necked down 06. the 243 is a necked down 308. All will feed fine. Most .308s are short action, but there are a great many that are not. For years savage never made a short action, they just chambered long action rifles in those calibers.

The Remington 700 comes in a large number of variants, with different stocks, barrel configurations, metal finishes and calibers.

winchester-308-Cartridge

In addition there are 3 lengths of action (not including the Model Seven’s lightweight action, which is even shorter than the ‘standard’ short action). There is the short action for cartridges up to 2.800 in (71.12 mm) in overall length like the .308 Winchester cartridge family, the standard action for cartridges up to 3.340 in (84.84 mm) in overall length like the .30-06 Springfield and .300 Winchester Magnum cartridge families and the long action for magnum calibers exceeding 3.340 in (84.84 mm) in overall length like the .300 Remington Ultra Magnum and .375 Holland & Holland cartridge families.

Both the U.S. Army’s M24 Sniper Weapon System and U.S. Marine Corps’ M40 sniper rifles are built from the Remington Model 700 rifle, in different degrees of modification, the main difference being the custom fitted heavy contour barrel. The M24 uses the long action bolt-face, whereas the M40 uses the short action. The reason for this difference is that the M24 was originally intended to chamber the longer .30-06 Springfield round.

The Remington 700 Milspec 5R rifle

This rifle was first introduced as a limited edition rifle back around the turn of the 21st century, and ever since then it has been of keen interest to many shooters.

The ability to have a rifle with the same barrel as the M24 SWS used by the US Army, and other nations around the world, but at a fraction of the $6000 price tag of the M24 is a big drawing point. While the milspec is not a standard item in the Remington catalog, it is still being made when possible and they are still popular.

The U.S. Army XM2010 rifle, .308 Winchester:

The United States Army’s Joint Munitions and Lethality Contracting Center has awarded Remington a Firm Fixed Price (FFP) Indefinite Delivery/ Indefinite Quantity (ID/IQ) contract (W15QKN-10-R-0403) for the upgrade of up to 3,600 M24 Sniper Weapon Systems (SWS) currently fielded to the Army pending type classification as the “M24E1”. The major configuration change for this system is the caliber conversion from 7.62mm NATO (.308 Winchester) to .300 Winchester Magnum to provide soldiers with additional precision engagement capability and range.

Remington-700-R5-Mil_spec-600

The .308 Winchester is a rifle cartridge and is the commercial variant of the 7.62x51mm NATO. The .308 Winchester was introduced in 1952, two years prior to the NATO adoption of the 7.62x51mm NATO T65. Winchester (a subsidiary of Olin Corporation) branded the cartridge and introduced it to the commercial hunting market as the .308 Winchester. Winchester’s Model 70 and Model 88 rifles were subsequently chambered for the new cartridge. Since then, the .308 Winchester has become the most popular short-action, big-game hunting cartridge worldwide. It is also commonly used for civilian target shooting, military sniping, and police sharpshooting. The relatively short case makes the .308 Winchester especially well adapted for short action rifles. When loaded with a bullet that expands, tumbles, or fragments in tissue, this cartridge is capable of high terminal performance.

308-30-06-300-winchester-magnum-balistics-comparison-chart

Although very similar to the military 7.62x51mm NATO specifications, the .308 cartridge is not identical and there are special considerations that may apply when mixing these cartridges with 7.62x51mm NATO, and .308 WIN chambered arms. Their interchange is, however, considered safe by the Sporting Arms and Ammunition Manufacturers Institute (SAAMI).

Accuracy International Chassis System (AICS)

We also found this extraordinary chassis system for the Remington 700 that we felt we should share as an alternative to the Eberlestock Model 11.

Accuracy-International-Chassis-System-AICS-remington-700

Accuracy-International-Chassis-System-AICS-remington-700-2
Remington 700 users can benefit from many of the advanced ergonomic and functional benef its of the AICS, not merely a stock, but a far superior chassis system with full-length aluminium self-aligning, self-bedding vee block compared to traditionally bedded interfaces between actions and stocks.

Accuracy-International-Chassis-System-AICS-remington-700-5

More information on the above chassis can be found here:
accuracyinternational.com

Accuracy-International-Chassis-System-AICS-remington-700-4

 

Below: Great example of Remington 700 5R Mil SPEC 11.25 Twist, SAS QD Muzzle Brake, Barrel shortened to 22″ when threaded for brake, Suppressor Ready, Jewell Trigger, Anschutz Round Bolt Knob. AICS 2.0 Folding Dark Earth Stock, EGW Pic Rail. 1/2 MOA groups with 175gr SMK, 168 SMK and 155 SMK. 324 rounds down the pipe.

Accuracy-International-Chassis-System-AICS-remington-700-6

 

Comments

  1. Remington-sniper

    Remington 700 R5 Milspec 308 Win…

    I could just have easily titled this comment “the most accurate .308 caliber out-of-the-box rifle ever” and simply ended it here.

    I deal with accuracy all day. It’s silly really. Most rifles on today’s market are sufficiently accurate to the demands placed on them, easily capable of hunting level or tactical level accuracy with good ammo. Yet I still continue to pass over or sell off any rifle in my collection that not only will not hold minute of angle accuracy or better, beat it by half. Years ago I adopted a Remington 700P in .308. It was a fine rifle but at that time, it was cursed with a very long throat. There seemed to be an era in Remington’s production history where quality control fell a bit and that particular rifle suffered from a few issues. Remington has long since rectified these problems and has since released many a wonderfully accurate piece. I’ll tell the tale of that particular 700P to illustrate how far things have changed at the Big Green. My 700P was a mid 1990s era rifle. It suffered from an excessively long throat. Bullets had to be seated well beyond magazine length to net best accuracy. The bolt wasn’t making decent contact and I swear the screw holes in the receiver top were drilled off center, making scope mounting a little quirky. You can read my fixes in the September 1998 issue of Tactical Shooter magazine (Page 41, Vol.1 No.8). That rifle has since served me extremely well and has proven time and again to be one of the most accurate rifles in my cabinet. After a bit of gunsmithing to tune things up, the rifle, with original barrel, has exceeded my expectations for what is still in effect, a factory rig.

    Which brings me to the topic of this article. In 2003 I believe, Remington started offering a rifle that to this day is still little known to many Remington fans and long range shooters who do not follow the industry closely. This is mainly because the rifle is offered only through one national distributor and if you are not set up with them as a dealer, you probably have never heard of it. Added to this fact, comparatively speaking, very few of these rifles are made annually. Numbers seemed to fluctuate between 250 and 500 per year. Known as the Remington Model 700SS 5-R Milspec this rifle is much sought after by those in the know. The premise of the piece is a stainless steel M700 action and barrel set in a newly designed HS Precision varmint stock. From its original format, the rifle has evolved a bit and for 2005 comes in the new HS Precision PSV74 varmint stock, which appears to be a hybrid between the tactically oriented Police stock found on the 700P and the more handy stocks found on the Remington Varmint Synthetic and Sendaro lines. The stock comes with a very nicely shaped palm swell that instantly places the hand in the proper position for solid trigger control. The 3 inch wide forearm has a re-curve in it which makes for very comfortable placement of your fingers in offhand positions. It also provides a very stable rest for bench shooting. The forearm is shorter than that found on the tactical rifles, making for a nice balance between solid feel and portability. Of course the stock comes with HS Precision’s full-length aluminum bedding chassis system and it is a true drop in. Old time gunsmiths will claim at the minimum a small pad of bedding compound should be placed just forward of the recoil lug to support the barrel, but I have to tell you, this particular rifle shoots so astoundingly well that I would not mess with a thing. The action screws are to be torque-set at 65 inch pounds and that’s it. Go forth and shoot.

    The rifle derives its name from its barrel. 5-R Milspec refers to the rifling used. 5R-rifling features a radius’d shoulder between the lands and the grooves. Advantages are claimed to be a smoother engraving transition on the bullet jacket which, in theory at least, creates less drag in flight – which means possibly a slightly flatter shooting bullet compared to a bore of standard rifling profile. The second benefit is cleaning. Without the 90-degree angles between lands and grooves, fouling seems less likely to adhere as tenaciously to the bore. Copper fouling may also be reduced. This rifling profile is used in the Army’s M24 Sniper rifle. It has a proven track record for accuracy at long range, often making M.O.A. or better shots possible to 1000 yards. The M700SS 5R Milspec has a 24″ stainless steel barrel very close in profile to the original 700P Police rifle, before Remington went to the longer 26″ tubes on their police line. I’ve never quite understood the need for a 26″ barrel on a .308 rifle meant for tactical law enforcement use, but I’ve never complained about the slight increase in velocity since 1000 yard shooting was part and parcel of my life for a time. However, when it came to field use, portability and storage, I’ve always preferred the shorter 24″ barrel of the older pre-1990s 700P or current M24. Were I in law enforcement where shots are generally limited, I’d definitely prefer the 24″ barrel as urban environments are as likely, or more so, than rural.

    Some have assumed the barrel on the 700SS is the same as the M24 barrel. While identical in rifling method, the outer contour is decidedly more portable. It’s similar to what you see on the Sendaro or Varmint line, meaning it’s not so burdensome over long hauls in the wild. Yet the accuracy this rifle has demonstrated proves that it can shoot right alongside its military brother and leave nothing behind in pure accuracy potential. I had heard reports ranging from .25″ @ 100 yards to .7″ at the same distance. Knowing how people like to pad numbers, I figured it was a solid half-inch rifle. But testing was proving problematic. I could not keep one in stock long enough to get it to the range! Finally a friend bought one (mine still doesn’t have a scope) and we hit the range for our first tests.
    Before going any further let me give you some particulars. One of the biggest complaints I have about factory rifles is the trigger and the throat length. Be it liability issues or some evil cabal bent on frustrating long range shooters everywhere, triggers usually come in at 8 pounds and throats are often long to avoid high pressures. The 700SS was not of this ilk. The trigger weighed in at 5 pounds. Still a little stiff but it was a crisp break with no creep. As the Remington trigger is bread and butter for any gunsmith worth his salt, I’d have it dialed down to a nice 3.5 to 4 pounds and leave it there. The chamber was equally, if not more impressive. I measured the maximum overall throat length for the bullet I indented on using, the Sierra 175 grain HPBT Match King. It came in at a reasonable 2.895″ with the bullet touching the rifling. Recommended standard length for the .308 Winchester is .2.800″. I was quite impressed. My 1990s era project 700P has had the chamber re-cut to match specs and its Max OAL with the same bullet is 2.885! Chalk one up for Remington! This meant I could seat bullets starting right at the recommended OAL or 2.8″ instead of having to seat them way long just to see any kind of accuracy. Max OAL is not a figure you will use in your loads. It simply gives you an idea of how far your bullet has to jump before contacting the rifling. Every rifle has its quirks but most do not like a super long stretch. Accuracy suffers. Hand loaders often seat long, just short of the rifling, in an attempt to gain better accuracy. This method is not without risk. Pressure can spike. Rounds often do not fit the magazine. The 700SS on the other hand, has a reasonable chamber and thankfully doesn’t force you to revert to extreme loading practices to net excellent accuracy. My buddy Aaron loaded up a batch of cartridges using Remington brass, 43 grains of Varget, CCI Benchrest primers and the 175-grain Sierra Match King bullets. He tried a few seating depths for testing purposes ranging from .015 off the lands to .095 off. I’ll get ahead of myself here and give you a hint. Bullets seated right at the recommended SAMMI length of 2.8″ shot the best!

    For range testing I decided that, since this rifle is so popular in F class competition, we’d start right off the bat with hand loads. We used IMI 175 grain match for break-in purposes and the rifle grouped fairly well considering it was being cleaned between each shot, but groups were nothing to rave about, coming in around an inch @ 100 yards. This was to be expected since each shot was essentially a cold bore shot from a new barrel.

    Aaron broke in the barrel by firing 10 shots and completely cleaning between each shot. Fouling for the first three or four rounds seemed heavy…but after the fifth round he was getting clean patches almost immediately! Break-in procedures are constantly in flux. Some claim now that it is unnecessary and wears out a barrel early. Others claim that a reasonable approach is to do a basic break in and don’t go overboard. I fall into the latter group. We shot 10 rounds, cleaning between each shot using, first, Hoppes M-Pro 7 and a bore brush to get out the carbon (this stuff is very effective on carbon deposits), followed by dry patching and Shooters’ Choice for the copper fouling. After 10 rounds we went right into shooting five round groups between cleanings. This break-in approach seems to be a good bridge between the no-break-in crowd and the rest of the long range shooting community.

    Using 200 yard benchrest targets set at 100 yards and a 10x magnification, we first tried bullets seating out close to the rifling. OAL was around 2.885″. The results were good, coming in around .6 inches with Aaron behind the trigger. He turned the rifle over to me when he got down to factory length loads. 2.800″ long just like you get in any box of Federal GM or hunting ammo. I wasn’t really prepared for what happened next. The first three rounds went into .192″ @ 100 yards! The next round I bolo’d because I was so exited about the way this was turning out. I should have gotten up, walked away and given it a minute. The fourth shot opened the group up with a flyer to .7 inches… but the fifth shot went right back into that oblong one-hole group, leaving those four shots at .192″! I was amazed. Had I not gotten antsy about it, this would have been the best ever group I’ve fired using a rifle chambered in .308 Winchester. We tried upping the charge and also tried other seating depths, but discounting that one round error on my part, the rifle definitely prefers 2.800 OAL and a muzzle velocity of about 2575 fps. To hedge my bets, I can definitely say this is a half inch rifle, right out of the box, with no extra work needed other than good ammo and a skilled shooter. But it gets better. The 175 grain match bullet is known for its ability to remain stable in flight to 1000 yards. The downside of that is that it might not always stabilize by 100 yards. Often, the groups you see at 100 yards are not much smaller than the groups you see at 200 yards with this projectile. Whether you shoot Federal GM2, Lake City M118LR, hand loads or any other load using this type of bullet, generally, you 100 yard group will not tell you the true picture.

    The following day we took the rifle to 200 yards and shot it alongside my 700P. It out-shot my rifle with ease, turning out groups in the .3 M.O.A. range! That is 6/10ths of an inch at 200 yards! Think about that. Five Shots. Six tenths of an inch. 200 yards. Over and over again. Point three minutes of angle. From a rifle costing less than a good scope. The best I could do with the 700P that day as .4 moa (about .75 inches) at 200 yards! Needless to say, the 700SS 5R milspec is a winner and as I stated at the beginning of this article, is probably the most accurate out-of-the-box .308 rifle I have ever had the pleasure to shoot. Its capable of true sub half MOA accuracy. It also seemed fairly indifferent to some variables we experimented with. Going up a grain in charge didn’t phase it much, nor did playing with seating depth. The overall results indicate it likes 2.8″ in OAL which is a godsend to people who do not handload, and it also seems to prefer velocities one normally expects out of the 175 grain loadings. Accuracy was excellent between 2550 and 2580 fps. You can certainly push the bullet faster but you gain little for it in accuracy. What this means is that those limited to using factory match ammo will see very good results. Federal GM2 and GM all hover between 2500 and 2600 out of most barrels in this length range. You can expect accuracy with factory match to fall in the .4 to .6 moa range. This is excellent for a non-tuned, non-custom rifle. Finally, as the rifle is all stainless, cleaning chores should be less work intensive and thus far this has proven to be the case. Tactical shooters will want to blacken or paint the rifle camo of course, but for competitive shooters just run and gun. The combination of the stainless action and barrel against the HS Precision PSV74 stock painted black with green webbing makes for a very handsome piece. Balance is excellent and ergonomic.

    If you cannot tell, this is fast becoming my favorite long-range rifle. I can solidly recommend it for Varminters, Law Enforcement snipers, F-Class competitors and anyone else looking for an extremely accurate .308 caliber rig priced well below what one would expect to pay for a custom rifle with the same accuracy potential. With the reasonable 24″ barrel length, the 700SS 5R Milspec breaches the gap between the Remington 700P and the 700LTR, giving law enforcement snipers a very accurate option for about the same money. You will spend over $1500 on a custom rifle to even come close to this level of precision.

  2. sharpShooter

    Well, regarding the Remington 700 Milspec 5R, the performance is not much different than comparable to other Remington offerings.

    The rifles unique barrel and rate of twist are it’s prime features that set it appart from many other Remington rifles. The stainless steel barrel is certainly interesting, however unless you’re feeding heavier bullets than 175gr, I would say the 11.2″ twist rate may not be a big enough reason to pay a $200+ premium. In my opinion the 1:12″ if not that much slower and will suffice in stabilizing the 175gr rounds.

    That said the 5R rifling may well be one of the reasons for the consistency across different ammo makes and weights.
    The stock is a little different as well, though not drastically without any real functional improvement over the normal 700P stock. Do I personally like it better than the 700P? Yes, I do, because of the shorter 24″ barrel, 5R rifling, and the stainless is good to have for operations in all environmental conditions. Does it perform any better? Not really, at least not in break in tests with new rifles.

  3. pjmeado

    Remington 700 Milspec 5R Question: If I can get my hand on one of these, has anyone had any experience as to how these perform at out to 1000yds, if well at all?? Thanks. Any other suggestions for a 1000yd gun under $1500??

  4. tacticalcity

    800 yards probably. The barrel is 24″ so 1K might be difficult. Me, I’m just not that skilled and the farthest I attempted was about 600 yards and it did just fine. I used it to build an M40A3 replica…kind of. Sold it about 6 months ago to raise money for an order of McMillan stocks. Have not gotten around to building another one.

  5. rksimple

    They will make 1k without a problem if the shooter is up to it. A 24″ barrel is more than enough. But with any 308, its not going to be “easy.”

  6. buffybuster

    To get out to 1K yds/m, it’s not the rifle. It’s the load. Even if the rifle has the accuracy at 100, 200, 500, 600, 700yds, many loads won’t retain velocity and bullet stability to get out to 1k yds.

    For .308Win:
    In my experience, you can’t get enough velocity (2700-2750fps) from 168gr loads (SMK/AMAX) to get out to 1K yds. The bullet tracks well until about 900-950yds, then it drops significantly more than the ballistic programs calculate and the consistency goes to heck. Even though the ballistic calc shows it’s suppose to still be supersonic, in actual fact the bullet losing stability.

    To get to 1K yds, you need to either shoot 155gr (SMK, VLD,AMAX) fast enough (2900-3000fps) or shoot 175-178 (SMK, AMAX, VLD) at (~2650fps) with better BC to retain the velocity to get to 1K. Can’t get 190SMK fast enough to be useful at 1K.

  7. swerv512

    why do they call them 5R milspec if only the 308 has that 11.25″ twist. the 300WM ones come with 1:10 twist (industry standard)- not sure what the .223 comes with…

  8. ar15barrels

    The 300 win mag model NEEDS the 1:10 twist to stabilize the heavier bullets you would use to take advantage of the 300 win mag’s increased powder capacity.

  9. srlamy

    I have a Remington 5r milspec in both .308 and 300 win mag. My 308 is a 24 inch barrel and I can make hits to 1300 yards with my 178 hornady load. My shooting partner has the same .308 5r but its newer and came with a 20″ threaded barrel. The velocity change from my stick to his measured with my ohler 35p is not very much. Less than you would think. He makes the same distace hits with a 20″ barrel as I do with my 24″. At 1000 yards and a well made hand load a 20″ barrel is very very capable in 308.

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