Suppressed Weapon Systems MISB 308Win for the SRS

I swore off shooting unsuppressed long ago, and I only do it occasionally by choice. The suppressor bug bit me hard many years ago, and I have never vanquished its effects. With that in mind, I am always thinking about better ways to hush the noise of my favorite pastime. Who would have thought that an idea I had depreciated would turn my jaded eye.

One of my most favorite rifles of all time, is my old Desert Tech SRS A1. I have run countless barrels through it, I currently have somewhere between ten and fifteen barrels of assorted different calibers. Factory, custom, and even a few specialty barrels. Even with all those options, I still love my old 16” 308 Winchester Covert barrel. The calm and consistent performance of the 308 is like an old friend, so when I got the opportunity to try yet another great 308 Winchester option for my favorite rifle, I jumped at it.

Suppressed Weapon Systems has been in the suppression business for some time. They specialize in the integration of suppression technology directly into the firearm, instead of making the suppressor just a muzzle device. Their MISB (Monolithic Integrally Suppressed Barrel) is available for many different firearms, including my dearest SRS. The modularity of the SRS family of rifles makes it ideal to pair with technology like the MISB, and with a durable cartridge like the 308, it would last for some time.

I’ve often tinkered with the idea of an integrally suppressed barrel for my SRS, but I was always worried about spending the money on an NFA item that would get burnt out and need to be replaced. A valid concern I had always thought, but the MISB is constructed in such a way that the tube can easily be removed and installed on a new barrel/baffle stack. So with my main concern assuaged, I dove in with both feet.

The Suppressed Weapon Systems MISB for the SRS is manufactured from a Bartlein Barrel blank, well know for great quality and precise shooting. The muzzle is cut at a determined length, in my barrel’s case, around sixteen inches. But the remainder of the barrel blank is then cut into the suppressor baffles. The length of the barrel to the breach of the muzzle is fluted, and drilled, I assume to decrease weight but also to add an expansion chamber for venting high pressure gas.

The outer tube of the MISB is a good fit, but not entirely tight, this was a bit of a concern for me at first but I later learned it was necessary to free-float the barrel. Having the outer tube captured and tightened with the barrel would add stress and torque to the overall structure. The tube is sealed at both ends with what appears to be Viton high temp fluoroelastomer O-rings. The muzzle end of the MISB has a threaded cap also sealed with the O-ring, it is knurled and has cuts for torquing it into place with a tool. Its an impressive example of machining design and ingenuity.

I couldn’t wait to get the barrel mounted in my rifle chassis, and test its performance. As soon as I got home with it, I hurried to my basement man-cave and installed it into my SRS. I found the fit to be a bit snug, perhaps more-so than any other barrel I’ve tried. Its easy to get a burr on the shank of SRS barrels, one must be careful. But that was not the case with the MISB, it was simply just a bit tight. Perhaps a slightly smaller diameter would help, but I found it to be consistent, so it was a minor inconvenience. It was the same when I mounted it in my SRS A2.

Once mounted, I headed for the hills to get the rifle zeroed with this new barrel. As usual, it was an easy process. Most SRS chassis will change POI with a different barrel, but it is rarely off by more than a few inches. So a quick re-zero on my scope was easy, and in no time I was using the rifle to shoot steel at 710 yards.
SWS guarantees sub MOA accuracy for three shots with their MISB system, but suggests that 1/2 to 3/4 MOA is expected more often than not. I found my barrel to be consistent with that.

The suppression quality of the barrel was on par with what I expected. The first round pop was significant, but quickly forgotten with successive shots. The slender barrel looks very handsome in my A1 with the longer handguard. A few inches longer than a standard twenty-two inch barrel which pokes just out of the handguard. When mounted in my Covert A2, it was a few inches longer than the standard Covert sixteen-inch barrel when fitted with the DTSS Suppressor.

Conclusion
I think the SWS barrel offers a great option for those looking for a slender and inconspicuous barrel to keep things quiet. At $2200 for a barrel, it is no small investment. But it’s also not much different than a good barrel fitted with a suppressor would cost you, and SRS owners are gluttons for dropping coin on good barrels. And the fact that you can reuse the tube on a new barrel blank having no interaction with the Federal agency everyone loves to hate makes it even more appealing. I look forward to using it even more in the future.
-CBM

The 257 Blackjack

You may have read my piece on the 25 Creedmoor from a while back, if you haven’t then make sure you go read it after this. In that article about the 25 Creedmoor, I detailed how my nascency in precision rifle shooting began with a twenty-five caliber rifle, and that I had returned again to the quarter-bore. There’s more to that story, however.
One of the main reasons I quit shooting that old twenty-five 0’six, was because there was never a good bullet selection for it. The biggest bullets available were one hundred twenty grain, and they were hardly long-range bullets, with ballistic coefficients not much better than anything else designed in the sixties. That was all about to change, and change for the better. I couldn’t have known how far down the quarter-bore hole I was going to fall when I first made contact with Blackjack Bullets.

The 257 Blackjack next to its larger parent, the 6.5 SAUM

That first conversation I had was with Miles Johnson, the brains behind Blackjack Bullets. Like me he had often hungered for a better bullet for twenty-five caliber cartridges, but he had the intellect and drive to do something about it. Miles is a smooth-talking guy, with very unequivocal purpose in conversation. The kind of guy you could sit around a fire with a bottle of whiskey and watch the stars, and before you know it he might be talking so deep about drag and aerodynamics that you have to start reading the bottle to find words you understand.
Our initial contact began my twenty-five Creedmoor project, Miles’ company Blackjack Bullets was producing the 131 Grain Ace bullet, and I intended to make it the crown jewel of the project. Which has been an extremely superior performer for me lo these short two years, it leaves its six-point-five cousin in the dust. But Blackjack had been working all along on something even more threatening and treacherous, it was their own cartridge that was purpose-designed to make the 131 Ace sing a tune that nobody could touch. That project was the Two-fifty-seven Blackjack, a short action magnum cartridge based on the SAUM case. It would fit in short action rifles, feed from AI patterned magazines, and push the Ace beyond thirty-two-hundred feet per second. It falls somewhere between the old 25WSSM and the 25SAUM wildcat.

The 131 Ace has an advertised G7 BC of .330, my personal experience and testing led me to believe that number is a tad conservative and that the number is more like .340. With an immaculate profile like that, the Ace when launched at these speeds is as flat as most available cartridges you can get, and it cheats the wind from its deviant influence.
Since the twenty-five Creedmoor had been such an outstanding success, I decided that I must indeed have the two-fifty-seven Blackjack as well, I figured it would be an amazing Rocky Mountain hunting rifle. So as soon as Miles had a reamer, we got started on the project.

The Pit Boss. Sporting a 24 inch Proof Research carbon wrapped barrel, and a YHM suppressor adorns the muzzle.

With weight in mind, I decided I would spend the extra cheddar and get a Proof Research carbon fiber barrel with a 7.5 twist. My 25 Creedmoor is a 7 twist, but with the much faster Blackjack I needed a slightly less agressive twist. It was matched to a lightweight carbon fiber stock from Iota Outdoors. Both would be connected with a simple Remington 700 short action. I swapped the factory trigger for a superior one from Trigger Tech, this has been a pretty standard practice for me. On top I mounted my US Optics TS 20X, which I think is perfect comapnion for this lightweight but long range hunting rifle. That said, I have a USO Foundation 3.2-17 on the way that might go for a ride on the Blackjack as well.

Trigger and magwell detail, all a perfect fit.

Next, it was time to start load development. Which requires making brass from something else, the easiest seemed to be Hornady 6.5 4S cases, they were cut, sized, annealed, then cut again, sized again, turned, and annealed. The finished product is a beautiful fat and short little case, it looks like the X47 after an all you can eat 24 hr buffet.
Mine is only the third rifle chambered in the Two-Fifty-Seven Blackjack so load data was based entirely from what Blackjack bullets had tried in theirs. I tried several different powders, including H4350, H4831SC, but I ended up getting the best velocity with Alliant RL 26. With 56 grains of powder, I was getting just shy of 3300 feet per second. Fireforming these fat little cases gave some slight variation in velocity, but that didn’t surprise me. I did quite a bit of testing with loads back and forth, which is a tedious process with such a limited supply of brass in which I was so heavily invested. Magnum primers seemed to give the cartridge too much of a pressure spike, and excessive wear to the cases, so I backed down to just a Large Rifle primer, which significantly softened the blow. This change still gave me adequate velocity, but also saved my brass from being ruined prematurely, and eased in extraction from the chamber. The Ace likes to run right around 3200FPS from the Blackjack, and that’s just fine with me.

A typical group from the 257 Blackjack, including a true coldbore shot (left) and four followup shots.

With no shortage of space here in the Rockies, I decided to get the Blackjack out to some significant ranges. I wanted to see how well my projections panned out, and see how close the trajectory lined up with my ballistic computer Trasol. My first distance conquered was 1025, this after confirming a fairly rough zero in the dirt at 150 yards. From there I dialed the indicated 5.3 MRAD, and closed the bolt. One of my favorite things about shooting that far, is the nice delay you have to get a good clear sight picture to watch the impact. The first impact was a touch low, so I corrected the .2 and fired again, making perfect elevation on impact. I then shot it at 1250 yards where it was slightly ahead of the predicted dope, and I had to dial back down half a MIl to get on target. I then stretched it out to just a few hundred feet shy of a mile, and 12.8 MRAD was just the ticket for that range. For the naysayers, that is two MIL’s ahead of the 220 grain 300 RUM I was testing a few months back. And at 1600 yards, the Blackjack is 300FPS faster than the RUM, and only 60 pounds of energy less than the RUM. These are of course estimations made by my ballistic calculator, but they appear to be spot on based on the data I’ve shot to within a reasonable margin of error.

Shooting these 25 caliber heaters through this carbon wrapped barrel can heat it up quick. This rifle was purpose-built to be a hunting rifle, so barrel heat is of little concern. Rare is the occasion that I shoot more than a couple shots, so the weight savings are far more valuable to me in a hunting rifle.

The recoil on the Blackjack is not bad at all, but for a short action I would call it sharp. Obviously, there is going to be some kick from something this spicy, but its certainly not bad, I would compare it to a heavy 308 load, keeping in mind the eleven-pound rifle weight.

One of the many concerns I am hearing from people about this project is the old “barrel burner” comment.
Yep, its gonna get roasted. If it gets to 1200 rounds I’ll consider myself lucky, and then I’ll get another barrel cut and threaded and screw it on in too. That is if I haven’t found something even sharper than the Blackjack by then.
Another concern I have heard from many is about feeding. Short and fat cartridges tend to have feeding issues, especially with steep shoulders like the Blackjack. But to my gratification, I have yet to have a single malfunction. It smoothly feeds from an old beater AICS magazine, which will hold seven of these handsome dandies. Whether the first, or last round from the mag, these hop right into the chamber without any hangups. And single feeding is no problem either, if you just toss them in with a bit of forward motion, so they clear the blunt breach of the barrel, the bolt closes smoothly.

Bolt knob detail. The 257 Blackjack was initially to be called the 257 Pit Boss, I decided to honor the original name by memorializing it here.

A wildcat cartridge is an adventure wrapped in hundred dollar bills, but it is not without its fun and excitement. I am not even close to being done with the 257 Blackjack, hunting season is just around the corner, and I fully intend on putting the Blackjack’s talents to work. With both deer and elk to harvest this fall and winter, the downrange energy, and resistance to wind, this lightweight but potent little rifle is a perfect candidate for these rugged Rocky Mountains that have become my winter range. With any luck, brass will be commercially available within the next few months from at least one reputable manufacturer. Reamers and dies will also soon be available from Blackjack Bullets website, so it may not be too long before this little cartridge is made an honest one.

In the meantime, I will continue to prepare and practice for the hunting season waiting for the next best thing. Miles may have some mad scientist things going on at the Blackjack Lab somewhere in the hills of Oklahoma. The best news of all perhaps is that big names like Berger and Hornady are following the lead, coming out with better bullets for the quarter bore fans like myself. So the future of the 257 Blackjack, as well as my 25 Creedmoor, and any fast twist 25 caliber cartridge will be bright and long-lived.

-CBM

Essential Gear for Elk Hunting

Elk hunting is a dream hunt for many of us, I am lucky enough to have had the chance over and over throughout the years. If an elk hunt is on your list of must-do hunts, here I have put together my thoughts on the gear you won’t want to be without when you go.
The Rocky Mountains are a bountiful and impressive place to hunt, whether you are after monster mulies, elk, or one of the other beautiful species herein, it can be quite a job. Today we’ll speak specifically about the elk hunting side of it, and the differences you should know between elk hunting, and smaller animals like deer.

The Bugle of a Bull
Contrary to what you see on all the hunting shows, calling elk is not as simple as it appears. Elk are most vocal during the rut, which is usually in September. If you are hunting outside of their rutting schedule, then your bugling tube and all your practice might be nearly useless. If it is a general season hunt, or any hunt where there will likely be people around adding hunting pressure, elk tend to shut up unless they are rutting. So keep in mind when your hunt is, and the kind of pressure they will be under. Elk are quite smart, and a call under the wrong circumstances may send them charging off into oblivion. Whereas during the rut, they can be hormone-driven fools, that come in fast looking for a fight.
Cow calls and other noises can be useful depending again on the general mood on the mountain you are hunting. I’ve brought in several bulls just raking the trees with a broken branch. If a big bull is what you are after, you have to play to his attitude.
Whether you are after a bull or a cow, you will want to keep an eye out for the cows. There are lots of eyes and ears in a herd of elk, and the ladies are usually the ones to bust you. Minimal sounds and calls may be all you need to find them and get into place for a shot. If you are hunting active herds, make sure you bring your A level calling game, a good bugle can bring in a monster on a string.

Boots of Hermes
Elk hunting will drive you right to edge of sanity, plodding through soft mountain soil, chasing towards a ridgeline in pouring rain or snow, your legs and feet will take punishment like never before. Having a good pair of boots is absolutely essential, or even better, have more than one pair. Sometimes you might find yourself sneaking quietly through dense forest, and other times clawing your way up a loose rock pile or chute. Having good boots and perhaps several different pairs for these differing terrains may keep you fresh. Make sure you have good comfy shoes waiting for you back at camp as well, with clean fresh socks. You’ll want to care for your feet as best as possible because they will be punished.
Lightweight is a must, but the weather can dictate the rest. If it’s cold and snowy then you will obviously want insulating boots to keep the heat in, and if it’s wet and raining, you’ll want waterproof footwear to keep from getting soggy and cold. The best practice is to have several good options, that way your feet get a pleasant change from day to day and hike to hike.

Extraction: Rope and a Plan
Until you walk up to your first downed elk, they just look like a big deer from a distance. But as soon as you lay hands on your prize, you will realize just how big they are. The realization shortly after recovery, offers quite the challenge, even with a buddy just turning a large elk around is hard enough. So one of the most important things you can have before leaving camp is a plan to extract the animal, that could be quartering it and packing it out, or hauling it away in one big piece. Whether it is horses, ATV’s, or just some good backpack frames, make sure you have everything in place beforehand.
A good extraction plan could just be a large group of friends with an affinity for intense labor, or it could be as simple as a profane and indecent amount of cordage. I’ve been party to several different types of elk recoveries, but whole is by far my favorite, and for that, you usually need enough rope to reach the animal with either a vehicle or a hypothetical team of mules. We’ve pulled elk nearly half a mile up steep canyons with enough rope, other times we have carried quarters from a pole carried by two, and the most ingenious plan ever, we built a sled from fallen trees and used it to drag an entirely butchered elk up a steep hill to the truck. There are hundreds of ways to do it, research the country you intend to hunt, and see what kind of work it will take to get your prey back to camp. Sometimes if you are lucky, you can drive an ATV or truck right up to them, of course, those stories don’t sound as adventuresome.

Bag it
As I mentioned already, elk are very large animals, handling a fallen animal the size of a horse can be a lot of work. If you are lucky enough to get it out whole, you will need to get it cooled down and skinned asap. If you end up having to pack it out, it will likely be in large pieces, and nothing beats some high-quality game bags to keep those pieces in. Typical game bags may be a bit small for an elk unless its in pieces. Make sure you have enough game bags to protect your meat from contaminants and insects, it will make it that much better to eat and butcher once you get back home.
It’s also a good idea to have a bunch of twine or paracord you can use to tie-up open ends, or to hang it from. Many times we have had to make multiple trips to pack out an elk, and sometimes overnight. Paracord is great for hanging up those pieces left behind to keep out of reach of foraging animals, it also keeps the meat clean and elevated where the air can maintain it cool and as fresh as possible.

Eternal Optimism
Elk hunting can be feast or famine, days can pass with little to no sign. One day they could be everywhere, and the next day they may have evaporated into the atmosphere. Elk hunting requires a good attitude, and if you couple that good attitude to diligence you can be successful. Study the area, know where the animals go when spooked, get a feel for their safe zone, and unless its a last-ditch effort, do not push them out of their safe zone. You’d be better off waiting for them to come back out on their own, whereas if you push them, they might run for thirty miles and never look back. In my experience, you don’t get the prize without putting in the effort, only after your hopes are broken, and your body pushed to the edge, does that magical moment happen when stars and sights align.

-CBM

Why you should try waterfowl hunting

If you weren’t lucky enough to be raised in a hunting family, getting started can be a little bit intimidating. One great way to get your feet wet, is with a little waterfowl hunting. We’ll discuss some of the progressive ways you can experience a good hunt, and by the end you’ll know what I mean by wet feet.

Ducks and geese were my first hunting addiction, it didn’t take long to get hooked on wing-shooting these high speed birds. If you like shooting shotguns at all, then shooting ducks is an incredible and fun challenge. They come in from any direction, at speeds varying from almost a hover to so fast you just hear them zip by as the wind whistles through their feathers.
Waterfowl hunting can be done all over the country, you probably are a lot closer to a marsh than you think. And though you might think it requires chest-waders and expensive equipment and outerwear, you can actually have a great time just hiding in the tall grass in earth toned clothes.

Getting started into water fowling can be done at your pace. If you have a shotgun capable of shooting non-toxic shot, your in business. Most waterfowl management areas require the use of non-toxic shot due to lead contamination in filter feeders.

Some of the best duck hunting spots are all on the water, but you can still have a great time hunting from walkable banks and shores. Decoys can help bring the birds in, but if you play your cards right you can shoot a limit by being in the right place at the right time. A good bird dog with an affinity for water could be an invaluable hunting partner in this case.
Shooting ducks and geese will turn you either into a crack shot, or a nutcase. Their aforementioned speed and agility make them a very challenging target.

I started out as a kid with a classic Remington 870 12 gauge, as have countless thousands. Hard to go wrong with something that simple and tested, but any good shotgun will do if it fits you.
Due to the typical wet and muddy conditions encountered when waterfowl hunting, it would be a good idea to use a gun with synthetic furniture like the Benelli Nova.
If goose hunting is to be part of your waterfowl adventure, then you may also want to consider a shotgun with a three or three and a half inch chamber. The added shot capacity can be helpful with bigger birds.
Whether you choose a pump shotgun, or a semi-auto like the Beretta A300 make sure you practice with it. One thing I love about shotgunning is that a lowly red-neck shooting his Grandad’s model 12 can out-shoot a millionaire with a twenty thousand dollar English double. So don’t fret if your gear doesn’t match the guys on the Duck’s Unlimited calendar.
As with most types of bird hunting, you can get into it as much or as little as you want. You might start by just walking down an irrigation canal wearing jeans and a jacket. Or you can go full Redhead with flat-bottomed boats, motorized decoys, and electronic calls. I would suggest wading into it slowly, and see what works for you. One of the best things you can do is to find a local group or club that can have you along, they can show you the tricks and nuances of your local marsh.
Keep in mind that waterfowl don’t mind the weather, and some of my absolute best days wing-shooting have been in completely miserable conditions. Wind, snow, and cold seem to produce the best hunting days in my neck of the Rockies. Hopefully you don’t have to endure the same just to try it out, but if Im going to go out, it’ll be in a winter storm.

Contrary to popular belief, ducks are edible. They can actually be done quite well if you spend the time to learn to prepare them. So you can add another feather in your cap by enjoying a meal you took from the sky into the kitchen.

Perhaps one of the best parts of waterfowl hunting is the camaraderie between friends and family. There is always plenty of time to talk, take friendly jabs at each others shooting, or tell old hunting stories.

So you might start out with a two-hundred dollar hand-me-down shotgun, and an old musty duck coat. But you could end up knee deep in muddy water with your very best friends, freezing together while discussing shot patterns, retriever breeds, and Pintail whistles, all while your clammy wet feet shiver from worn leaks in your favorite waders. If that sounds like fun to you, then you might need to try duck hunting.
-CBM

The Desert Tech MDRX

Advancing technologies have made every part of the firearm and shooting industry better, with new materials, better production equipment, and a growing competitive market all driving forward it is no wonder that so many new and exciting products are available today. Desert Tech has been pushing those limits since its inception in 2007, and this year they have released another great product that follows the Desert Tech adage Tomorrow’s Weapons.

The MDRX is the next generation rifle from Desert Tech, it builds on the already popular MDR rifle they released in 2016. The MDRX is a short-stroke piston operated semi-automatic bullpup, for those who don’t know already, a bullpup is a rifle configured such that the action, magazine, and firing mechanics are all located behind the trigger. The purpose of this design gives the MDRX a shorter overall length than conventional rifles of the same barrel length. When you add in the other additional features of the MDRX the difference becomes even more apparent.

Features
All Desert Tech rifles are designed with modularity in mind, and as such, they are all available as multi-caliber chassis and barrel combinations. The MDRX shares that same heritage, as it stands at the moment it is available in four different calibers from the factory; 223 Wylde, 308 Win, 300 BLK, and 6.5CM. All four of these barrel conversion kits can be interchanged in the same chassis, making the MDRX one of the few modern sporting rifles to accept both large and small frame calibers. All this from an SBR sized weapon without the stamp.
Being a semi-auto bullpup adds some challenges when it comes to universality, these challenges were overcome with ingenuity. The MDRX is completely ambidextrous, all of its controls are mirrored on both sides of the rifle for both right and left-handed shooters. In addition to the ambi controls, the rifle has a forward ejecting system that sends spent brass casing forward away from the shooter. Previous bullpup designs eject brass to the right side, which in a bullpup is a bad thing if you are left-handed. The MDRX can be fired from the right or left side with no concern of catching hot brass to your face. And if you are a dedicated left-hand shooter, you can swap ejection from forward right to forward left in just a few seconds.
The MDRX comes standard with a compensator made by Desert Tech called The Ratchet, the compensators are caliber specific to provide the best performance in recoil reduction and to stop muzzle rise.
One of the major challenges with bullpups is creating a good clean trigger pull, this is due to the linkage required to connect trigger shoe to the sear pack. This is another challenge that was overcome with design ingenuity, and the resulting trigger feel of the MDRX is widely accepted as great. Of the many people who have pulled the trigger on an MDRX, the common consensus is that it is a good trigger, not just for a bullpup, but a good trigger period.
The MDRX has a six-position adjustable gas valve allowing the operator to tune the rifle to whatever ammunition they might use, as well as use the rifle with a suppressor and a lower gas setting.
The MDRX’s aluminum/polymer chassis construction features full-length upper Picatinny rail, M-LOK slots for accessories and flush-mounted QD sling cups on the rear of the receiver. It is also designed to accept most AR-15 style magazines, and for large frame calibers, it uses SR-25 pattern mags. The rifle ships with caliber appropriate P-mags from Magpul.
The various caliber conversions for the MDRX feature popular twist rates, and standard barrel thread for adding muzzle accouterments. There are also both sixteen-inch, and twenty-inch barrels available in several of the assorted calibers, giving shooters different performance options. And with different barrel lengths, there are two different handguard lengths to go along.
The ambidextrous charging handles of the MDRX are non-reciprocating, they are normally locked to the front in a spring-loaded detent. They can also be locked to the rear by pulling them back and up, the release is as simple as slapping either of the handles down, and the bolt carrier closes into battery. The gun locks open upon firing the last shot from the magazine, the bolt release is centrally located right behind the magwell. This allows for very quick reloads by simply extending the thumb when seating a fresh magazine, thus closing the bolt on a fresh round. This actually can make reloading faster than most AR-style rifles due to fewer steps in the reload process.
The forward ejection system is perhaps the most curious of all the MDRX’s features. The open-faced bolt extracts the spent case and carries it to the rear, as the carrier travels it engages the ejector with a dovetail lug on either side. The momentum of the carrier then pulls the scissor-like ejector out, and it swipes across the open bolt face pushing the spent case off and into the ejection chute opposite. There it is retained by a spring-loaded pawl until the bolt carrier again travels forward where a protruding lug pushes the spent case forward and out the ejection chute. It’s a very interesting system, the only flaw I found with it is that when unloading an unspent cartridge from the rifle, it does require a firm stroke of the charging handles to get the cartridge seated firmly in the ejection chute. This is not so much a flaw as much as it is a training practice needed to be followed. The ejection system is designed to be used on either side of the rifle, both the ejector and chute can be swapped from one side to the other in seconds.

The MDRX SE utilizes a standard side ejection system

Also new for 2020 is a new side ejecting MDRX, for those who prefer a simpler, more traditional ejection pattern. The side eject is available in. 223 Wylde only, and can also be swapped from right to left side ejection. There is also the added benefit of a lighter overall weight, and a less expensive price tag.

On the Range
With several barrels in hand, I took the MDRX into my mountain hide to test its function. I started out shooting with the sixteen-inch 308 Win barrel, and loaded with Fiocchi 150 Grain FMJ ammunition at one hundred yards. After zeroing the sights, I fired a few five-shot groups, which ended up being around two MOA in size.
I continued firing the rifle at several additional targets to see how it ran. I found the recoil to be much softer than the previous similar rifles I had shot, this surely had much to do with the Ratchet compensator. The trigger was very clean and crisp, the reset is quite audible, I attribute that to the highly conductive poly receiver who’s hollow construction makes a very resonant chamber. I fired several additional groups using additional ammunition types as well, American Eagle XM80 as well as some 168 Grain match ammo from both Hornady and Federal. The match grade ammo certainly provided better groups, they averaged right around one MOA.

The MDRX seen with 20 inch 6.5CM barrel and longer handguard

So with several hundred rounds through the rifle, and a respectable shooting and zeroed rifle, I figured it was time to test the metamorphosis of this multi-caliber gifted rifle. The barrel is removed from the MDRX using a five-millimeter hex wrench, the rifle comes with one, but I prefer to use the suggested eighty-inch-pound torque limiter. After removing the handguard via two loosened screws and one take-down pin, the barrel is released by loosening the two barrel clamp screws by about one turn, and then disengaging the barrel lock 180 degrees to allow the barrel to slide out the front of the chassis. The bolt must be locked open to the rear to complete this operation. I then installed the twenty-inch 6.5 Creedmoor barrel, seating it firmly towards the breach. The process is then reversed, turning the barrel lock 180 degrees, and then torquing the two barrel clamp screws to 80 inch-pounds with a torque limiter. Followed by re-installing the handguard, which I had swapped out for the longer one. The rifle had just transformed from a sixteen-inch 308 Winchester into a twenty-inch 6.5 Creedmoor, and I was excited to see the increased performance. The point of impact would not be the same from one barrel to the next, but it was on paper at one-hundred yards, so it only took some minor corrections.
The 6.5 Creedmoor shot very well, with 140 Grain ammunition from both Hornady and Desert Tech, the groups averaged much better, in the sub to half MOA realm. With this kind of accuracy, I couldn’t wait to take the MDRX out to more significant distances.

For several hours the rifle neatly piled up brass right in front of my shooting mat, the rifle never malfunctioned, and just kept eating magazine after magazine of ammunition. I also fired some S&B 140 grain ammo through the rifle without any problems, I would have liked to try some lighter loads like a 120 grain, but I didn’t get the chance.

A typical 5 shot group from the MDRX 223 Wylde 40 Grain Fiocchi (100 Yards)

The rifle is easily swapped to smaller caliber barrels as well, the 223 Wylde and 300 Blackout do require a little more though.
A change of the bolt, a magwell spacer, and a swap of the ejection chute are required in addition to the barrel change.
The 223 Wylde shot just as good as the 6.5 Creedmoor, sub MOA groups were easy when shooting good ammo.

The great performance of the MDRX was hard to deny, it is a very compact rifle, with incredible reach, and good accuracy. Desert Tech has upped the game with this rifle, and they stand behind all their rifles with a lifetime warranty. It would be a great rifle whether you are hiding in a tree stand, need a behind the seat truck gun, or anywhere you’d need heavy firepower in a compact package. Its larger calibers are certainly useful for big game hunting and some distant shooting, while the smaller calibers are great for quick target shooting in a 3-gun style competition or varmint hunting. The MDRX carries a higher than average price tag, but that is because it brings so much more to the table. The multicaliber option alone actually saves money by consolidating your training, and less money spent on optics and accessories. You literally could do almost every American shooting activity with this one rifle. Whether it is a home defense rifle or a suppressed ranch rifle, the MDRX is a do-all rifle if ever there was one.

-CBM