The JP MR-10™ features a benchrest-quality short action with the best of everything including a large-knobbed, spiral-fluted bolt for dirt clearance, Picatinny top rail, single-stage match trigger, and JP Supermatch™ fluted barrel with large-profile JP Tactical Compensator perfectly blended to the barrel. This premium action is installed in our JP Advanced Modular Chassis System™—a state-of-the-art machined chassis system made from 6061 T6 aircraft grade aluminum.
Base Rifle Specifications:
Action: 3-lug short throw MR-10 bolt action with 20 MOA MIL-STD-1913 Picatinny base
Barrel: JP Supermatch™ 416R air-gauged, button-rifled, cryogenically treated barrel
Barrel Finish: Fluted stainless steel
Muzzle Treatment: Large-profile JP Compensator
Caliber: .308 Win., 6.5 Creedmoor (other calibers available upon request)
Chassis: JP AMCS tactical chassis with folding Magpul Precision Rifle Stock with two 10-round magazines
Grip: Precision grip with palm rest
Forend: Benchrest or tubular style
Trigger: 1-3 lbs.
Accessories: JP accessory pack including operator’s manual, two 10-round magazines, test target (guarantees 1/2 MOA accuracy) and more
POF Gen 4 ReVolt Bolt Gun 7.62 NATO 18″ Barrel, Modular Rail, NP3 Finish 10 Rd Mag MANUFACTURER NO: 00789
POF Revolt Heavy
AR-style rifles with straight pull actions that are legal in all 13 original Colonies. Charging handle can be disassembled and used as a driver for scopes and rail accessories. Built around longer 18.5-inch fluted barrel with a nitride finish and toothed 3-chamber muzzle brake. Polygonal 5R rifling. Enhanced E2 chamber which is a fluted chamber that channels a small amount of gas around the neck and shoulder of the cartridge to assist with extraction. Push-pull extraction system reduces wear on the extractor and ensures longer life of the critical part. Free-floating 14.5-inch handguard which has a raised receiver extension that clamps onto the flattop rail for a continuous optics mounting platform. Handguard sports a small forward rail for shooters who prefer iron sights and features the latest M-Lok modular accessory mounting system by Magpul. Magpul pistol grip and Luth-AR adjustable target buttstock. Receivers and bolt carrier group have slick NP3 nickel plating. To make the rifle compatible with laws in all 50 states the upper uses a captured front takedown pin. Pin lets the upper rotate from the lower for maintenance while preventing taking the upper off without tools.
POF Gen 4 ReVolt Bolt Gun 5.56/223 18″ Barrel 14.5″ Modular Rail NP3 Finish
Part AR-15, part bolt-action, all POF-USA. The NEW POF ReVolt LIGHT Bolt-Action rifles feature our Gen 4 ambidextrous controls, innovative bolt-action design, and our M-LOK compatible M Rail. The ReVolt™ shares the look and fire control operations that you are used to. Minimize your training time, maximize your efficiency. Pure POF-USA quality and performance, purpose-built for those demanding more out of their bolt-action rifles. A perfect choice for hunters and Law Enforcement; and with the change to a captive pin at the factory it’s legal in all 13 Colonies – even where the Tories live.
Charging handle can be disassembled and used as a driver for scopes and rail accessories. Built around longer 18.5-inch fluted barrel with a nitride finish and toothed 3-chamber muzzle brake. Polygonal 5R rifling. Enhanced E2 chamber which is a fluted chamber that channels a small amount of gas around the neck and shoulder of the cartridge to assist with extraction. Push-pull extraction system reduces wear on the extractor and ensures longer life of the critical part. Free-floating 14.5-inch handguard which has a raised receiver extension that clamps onto the flattop rail for a continuous optics mounting platform. Handguard sports a small forward rail for shooters who prefer iron sights and features the latest M-Lok modular accessory mounting system by Magpul. Magpul pistol grip and Luth-AR adjustable target buttstock. Receivers and bolt carrier group have slick NP3 nickel plating. To make the rifle compatible with laws in all 50 states the upper uses a captured front takedown pin. Pin lets the upper rotate from the lower for maintenance while preventing taking the upper off without tools.
POF Revolt Light
Modular Driven Technologies MDT HS3 Chassis is a solid chassis system manufactured from billet 6061-T6 Aluminum, which has been hard anodized for additional strength. The v-shaped bedding ensures maximum accuracy and repeatability. The fore end allows barrels as large as the size of the rifle action and has a total length of 15″ from the trigger. (Which is 3″ longer than our popular LSS chassis system). The chassis is designed to take any AR-15 butt stock and Pistol grip and accepts MDT polymer magazines or any AICS profile magazine. The chassis is finished with Polymer side panels for color, grip and feel.
Improve accuracy and ergonomics with the HS3 Chassis system. The HS3 is a light (2.2lb) chassis system for bolt action rifles that allows use of AR-15 buttstocks and grips to suit your needs. It is machined from 6061 aluminum, hard anodized and finished with black or FDE side panels for color, grip and feel.
MDT HS3 Fits the Following Models
- Remington 700 Short Action
- Remington 700 Long Action
- Savage Short Action
- Savage Long Action
- Tikka T3 Short Caliber
- Tikka T3 Long Caliber
- Howa 1500 – Short Caliber
Modular Driven Technologies MDT HS3 Chassis Black
As Townsend Whelen, former U.S. Army colonel and American Rifleman contributor, was once famously quoted as saying, “Only accurate rifles are interesting.” Employing that rubric alone, the Ruger Precision Rifle is a supremely interesting firearm. And, to the company’s credit, the introduction of additional evaluation criteria such as versatility, reliability and value only make its newest bolt-action repeater all the more intriguing. Featuring sub-minute-of-angle accuracy, the dependability of a bolt gun built on the gunmaker’s proven American action, all the modularity of the über-customizable AR-15 platform, the ability to accept a multitude of magazine types and a price tag that is a literal fraction of many of the guns it will compete against on the market, Ruger’s latest foray into the long-range precision shooting field should pique the interest of a broad range of gun aficionados.
Sturm, Ruger & Co. believes that within the gun world there exists a sizeable segment of shooters who are interested in long-range precision shooting—they just have never been able to justify taking the plunge due to the typically astronomical cost of purchasing a gun designed expressly for that purpose. With an MSRP of $1,399—and a likely eventual selling price closer to $1,100—the Precision Rifle represents Ruger’s invitation for these cost-conscious gun buyers to finally enter the world of long-range shooting.
“Competitive pricing is a part of the Ruger brand. We could have built a semi-custom gun for $4,000, but it would have been a novelty—rarely found in the real world,” said Mark Gurney, Ruger’s director of product management. “We wanted to keep the price of the Precision Rifle reasonable so that it would be available to just about anyone.”
The Precision Rifle’s upper receiver and one-piece bolt body are CNC-machined from pre-hardened 4140 chrome/molybdenum alloy steel. The lower receiver is machined in two pieces, right and left halves, from 7075-T6 hard-coat anodized aluminum. That method simplifies manufacture, allows more precise control of machining in the magazine well and makes assembly of small components easier as they can be placed in position in one half before the other half is attached.
Offered at this time in three short-action chamberings, the rifle is available in .308. Win. with a 20″ barrel, 6.5 mm Creedmoor with a 24″ barrel and .243 Win. with a 26″ barrel. The weights vary by chambering, but with the lightest model starting at 9.7 lbs. sans optic, the Precision Rifle is not a light firearm. The evaluation gun provided by Ruger was chambered in 6.5 mm Creedmoor and—after being furnished with a scope, bipod and stock-mounted monopod—tipped the scales at just over 15 lbs.
Development of the Precision Rifle started with the stated goal of sub-m.o.a. accuracy using American Rifleman’s protocol of averaging five consecutive, five-shot groups. The end product managed to exceed that goal by a fair margin, as internal testing conducted by Ruger has yielded an average of 0.83″ at 100 yds using multiple guns. The sample sent to American Rifleman for testing performed even better than that, achieving an average result of 0.76″ at the same distance using three ammunition loads.
Forgoing a traditional rifle bedding system, which transfers recoil asymmetrically, the Precision Rifle instead utilizes a linear recoil path to provide the greatest accuracy potential. By directing unwanted movement and vibration straight back into the buttstock, the Ruger’s in-line recoil path minimizes their potential impact on the barrel of the gun as it fires.
“A good bedding system ensures the gun responds the same way during recoil every time, but this gun really isn’t bedded per se. Our gun has a much simpler system, with no friction interfaces between the receiver and stock which can move,” Gurney said. “There is only a buttstock, which is threaded on the back of the receiver, and is such a solid, in-line connection that it is essentially an integral part of the receiver.”
The rifle’s barrel is cold hammer-forged 4140 chrome/moly steel with 5R Rifling. According to Gurney, 5R places a land opposite each of the barrel’s grooves, resulting in less aggressive upset and distortion of the bullet as it engages the rifling, thereby aiding in accuracy. The 5R design also features less sharp-edged lands than those present in conventional-style rifling, reducing powder fouling and jacket failures in quick-twist barrels. The company further optimized the Precision Rifle’s accuracy by utilizing the tightest possible chamber and groove tolerances—also taking extra care to ensure a centralized chamber and minimal headspace. Rigidly affixed to the rifle’s receiver via a barrel nut, the gun’s barrel can be easily replaced by a competent gunsmith using a barrel wrench and headspace gauges.
All Precision Rifle barrels are medium-contour (0.75″ at the muzzle) and are free-floated within their fore-ends. Twist rates were selected by Ruger to ensure the rifles could stabilize the longer bullets within each chambering that are most popular with long-range shooters. The barrels are threaded at the muzzle (5/8×24 thread pattern) to facilitate the use of compensators or suppressors, and come with a thread protector. A 20-m.o.a. canted Picatinny rail is secured to the top of the receiver by four screws, allowing for increased long-range elevation adjustments with the gun.
Despite all that can go into accurizing a rifle design, it is often the trigger that either makes or breaks a precision firearm—after all, can the rest of a gun truly be considered accurate if a poor trigger makes taking good shots extremely difficult? Fortunately Ruger avoided this potential pitfall altogether by outfitting the Precision Rifle with its fine Marksman trigger. A lever-in-blade design with a user-adjustable pull between 2 lbs., 4 ozs. and 5 lbs., the Marksman trigger installed on our sample gun was superb—breaking crisply at 2 lbs., 7 ozs. Adjustments can be made externally with a wrench that comes integrated into the bolt’s shroud.
According to Ruger, among the main reasons it selected the American action as the heart of its new Precision Rifle is the 70-degree bolt throw and three-lug bolt design. The American design provided Ruger’s engineers with a platform that was easier to manipulate from the shoulder than most 60-degree bolt-action rifles, yet allowed better scope clearance than a 90-degree action. Ruger also incorporated dual cocking cams to help make operating the bolt easier, and those familiar with the American’s smooth-cycling action will recognize the same in the Precision Rifle. An oversize handle was selected for positive bolt manipulation; however, Ruger threaded the knob (5/16×24 thread) to allow for customization.
When exploring its potential use in the Precision Rifle, the Ruger engineers likewise discovered that the bottom bolt lug of the American action, conveniently located at the 6 o’clock position, was able to traverse between the feed lips of many detachable-magazine designs—making it an ideal feeding aid, as the lug helps strip the top cartridge from the magazine and load it into the chamber. Clearances in the bolt body allow it to clear an inserted magazine’s feed lips when it is rotated, and an angled section facilitates its withdrawl to the rear by allowing it to gently depress and override the top cartridge.
While the project was originally intended to utilize only SR25 and Magpul PMAGs, along the way Ruger’s design team, led by Jonathan Mather, devised a method that allowed them to greatly increase the rifle’s magazine compatibility, the final result being what the company is calling its Multi-Magazine Interface. The MMI, for which Ruger has been awarded one of the gun’s seven patents, allows the Precision Rifle to operate using a plethora of both rear- and side-latching box magazines chambered for .308 Win. (.243 Win. and 6.5 mm Creedmoor cartridges will also feed through unmodified .308 Win. magazines). Examples of compatible magazines include: DPMS, M110, SR25, PMAG and AICS.
Externally the MMI appears to function much like a standard, rear-latching, M14-style magazine release, but inside the magazine well a little something extra is occurring. It essentially works in two stages—once the magazine release, which is located just forward of the trigger guard, has been pressed forward far enough, a side bar is set into motion that also actuates the side latch. Simple yet effective. The gun comes supplied with two 10-round Magpul PMAGs. It is possible that some AR-10 and M14 magazines may also function through the Precision Rifle, but Ruger warns that—due to those magazines’ wider tolerance ranges and varied production histories—most will not.
The rifle’s buttstock, a proprietary Ruger design that the company calls the Precision MSR, allows for up to 3½” of adjustment to the length of pull and 3/4″ of comb height customization. Both can be accomplished quickly in the field by flipping two cam levers on the side of the stock to the unlocked position, adjusting the stock to the desired settings and then tightening the levers down again. Although the process is a little more complicated, the cant of the buttpad can also be adjusted up to 9 degrees in either direction.
Ruger’s factory buttstock has a left-folding hinge that allows it to be locked in the folded position; in fact, the stock must be moved out of the way in order to remove the bolt from the receiver. A bolt-release button is located on the upper left side of the receiver, and it is easily activated. The Ruger Precision MSR also comes with a soft rubber buttpad and a section of integral, bottom-mounted Picatinny rail for the installation of a stabilizing monopod.
The buttstock is attached via a standard mil-spec, carbine-length AR-style receiver extension, but without the internal buffer system, allowing the bolt to travel inside the extension during manipulation. As such, the rifle can accept any mil-spec AR-compatible stocks—similarly, the Precision Rifle’s pistol grip, fore-end and safety selector switch can all be reconfigured using AR-style components—which opens the gun up to the big world of AR customization. While end users are free to remove Ruger’s buttstock and swap it out with the replacement of their choice, most shooters who are primarily concerned with getting a gun they can use right out of the box will be more than happy with the Precision MSR.
The gun’s standard configuration also includes an extended-reach AR-style pistol grip, 15″ free-floating Samson Keymod Evolution fore-end and a reversible, 45-degree safety selector. If any of the rifle’s default furniture is ripe for replacement, in my opinion it’s the fore-end which—when affixed to a substantially heavy rifle like the Ruger Precision—takes on an overly aggressive texture.
The gun media’s first opportunity to lay hands on the Precision Rifle came in mid-April at FTW Ranch in Barksdale, Texas, where about a dozen gun writers got the chance to put Ruger’s latest rifle through FTW’s Precision training course. When a colleague of mine learned that I would be among those invited to attend the event, he expressed how jealous he was, calling the ranch a “long-range shooter’s paradise”—which, of course, to my mind made it the ideal venue to wring out Ruger’s new long-range rifle. And after a week spent turning the ranch’s 12,000 acres and 14 ranges into my personal playground, I have no quibbles whatsoever with my coworker’s assessment of the place.
After a brief introduction to the gun by Ruger and a short classroom session by our FTW instructors to brush up on minutes and mils and hold-overs, it was off into the Hill Country of Central Texas to see what the rifles were really capable of. Our evaluation guns were chambered in 6.5 mm Creedmoor, and topped with Burris XTR II 4-20x 50 mm riflescopes outfitted with the G2B Mil-Dot reticle. I found this to be a solid union of gun, glass and reticle. And after putting several hundred rounds downfield, I also came to the opinion that the 6.5 mm Creedmoor might well be the perfect chambering for this particular rifle.
Like the Precision Rifle itself, the 6.5 mm Creedmoor cartridge and chamber were developed from the start with accuracy in mind. With a freebore diameter specified at 0.2645″ and bullets measuring 0.2640″, the projectiles are forced to enter the rifling with minimal in-bore yaw. The Creedmoor also produces plenty of energy (most loads hover right around 2,400 ft.-lbs. at the muzzle)—and thanks to a relatively high ballistic coefficient, will retain that energy at extended distances—yet recoils minimally enough through a gun with the Precision Rifle’s heft as to allow for all-day shooting sessions with absolutely no discomfort. During the course of the event, we exclusively used Hornady’s 140-gr. A-MAX offering, and the guns seemed to agree with that load quite well.
The end result? There’s an oft-used phrase in gun circles that you have undoubtedly heard on an untold number of occasions, “This gun shoots better than I do.” Well, triteness be danged, this is nonetheless an apt expression in the context of the Ruger Precision Rifle in my hands. I’m not too proud to admit that any steel left unrung during my time at the ranch was far more often the consequence of operator error than it was of an unpredictable rifle. Prior to my sojourn to FTW, my experience with long-range precision shooting was regrettably quite limited. And yet the Ruger Precision Rifle made me look good.
On the final day of our visit, the instructors took my fellow gun writers and me on what the ranch terms a “Drive Around,” which is essentially a Jeep tour of the premises, stopping at 10 locations along the way to take two shots at a steel target off in the distance. Target distances varied from 300 to 875 yds., with most resting in the 400 to 600 yd. range. Some were placed well above us on a ridge, others were positioned far below in a gorge and more still were so distant that several hills and valleys stood between us and our target. And due to the Hill Country’s rugged and sharply varied terrain, no two shots featured even remotely similar wind conditions.
Despite my inexperience, I managed to connect on 16 of 20 possible targets, including the 875 yd. shot situated two valleys over from my shooting position. Now, I can undoubtedly attribute much of that result to the tutoring and expert wind calls provided by FTW’s phenomenal instructors, Doug Prichard and Larry Summerfield, but a decent share of the credit must also be placed on the rifle. In addition to tack-driving accuracy, it cycled through approximately 500 rounds of ammunition without a single feeding, extraction or ejection issue.
Unfortunately, in many areas of the country it can be difficult to find adequate space to truly indulge in the sport of long-range precision shooting. The open spaces needed to really stretch a cartridge’s legs simply aren’t available to many shooters, so a lot of these folks resign themselves to the next-best alternative open to them—benchrest shooting at 100 yds. And while the Precision Rifle was made for long-distance use, it can still punch paper at closer ranges with the best of them. The first zeroed-in, five-shot, 100-yd. group I fired through the gun at FTW measured a tidy 0.51″, and as you can see from the tabulated results, the rifle is capable of keeping groups under an inch all day long—though, as might be expected given the twist rate, it does seem to favor heavier bullets.
Reaching out and hitting a small target from a distance beyond what is clearly visible with the naked eye is an amazingly gratifying achievement. I had no idea how much I would enjoy it when I set out for the ranch. And having the confidence that you’re behind the trigger of a gun that will, if you also do your part, allow you to accomplish that feat consistently brings a level of satisfaction that defies description. The Ruger Precision Rifle is just such a gun.
I’ll never forget the sense of pride and accomplishment I felt the first time I fired off a group, walked downrange and realized that I’d placed all of my shots into the same jagged hole. The Ruger Precision Rifle—offering consistent accuracy and endless customization options at a price point that most riflemen should find palatable—stands poised to introduce a whole new wave of long-distance shooters to that same rush.
This article first appeared on American Rifleman
Ruger Precision Rifle Review
MDT TAC21 Chassis – As reflected on the page devoted to this project this rifle kicked off the rebirth of modularrifle.com and I’m quite pleased with how everything turned out.
Modular Driven Technologies – The entire project was a pleasure from the start thanks in large part to Maarten of MDT. He patiently answered each and every email in a timely and professional manner. Maarten is the single reason our second project will be a also be from MDT.
Packaging – The packaging was the first indication of the attention to detail and quality that MDT represents. So often these days gun parts are wrapped in paper paper, stuffed in a box and with a little luck arrive without to many dings and scuff marks. No chance of that with the TAC21. The unit ships in an ample box with a closed cell foam interior fitted for the individual chassis parts. Nicely done.
Construction – The MDT TAC21 Chassis is precision in and out. Flawless manufacturing, fit and finish. No interference from the Cerakote. Holes are cut clean and straight. Threads are cut clean. The pieces all go together precisely without forcing while retaining a tight fit. Make no mistake this is a piece of heavy duty gear which is not readily apparent in internet pictures.
Assembling the MDT TAC21 Chassis – The instruction manual is well done and written clearly. Installation was pretty straight forward if the directions are followed. (Remove the scope mount screws). As stated previously I suggest using the pdf instructions below as they are easier to read and view on a computer monitor.
- MDT TAC21 Installation for Savage Short Action
- MDT TAC21 Installation for Remington 700 Short & Long Action
- MDT TAC21 Owner Manual
Note:We are going to call the MDT TAC21 20 inch Suppressed Modular Rifle project complete even though a keen eye might notice the images reflect a Larue Tactical Scope Mount and a Leupold Riflescope instead of the Vortex Viper PST 4-16×50 FFP Riflescope and Ameican Defense Manufacturing Scope Mount as listed on the project page. We will update the images once the new scope is in hand.