The easiest solution is to use a special bullet thats designed not to overpenetrate such as a lightweight hollow point or frangible bullet. It's usually the shorties - under 10" - that need the can to cycle with subs. Some bullets require a certain barrel length to reach maximum energy, and using shorter barrels makes them far less effective. by smustian Sun Dec 29, 2013 1:08 pm, Powered by phpBB Forum Software phpBB Limited. The 300 AAC Blackout was designed to achieve energies similar to the 7.6239mm Soviet in an AR-15 while using standard AR magazines at their full capacity. Scientifically, logically, and anecdotally, its a winner, and Im going to show you why in this article. Their higher B.C. The cartridge simply cannot push them fast enough to ensure expansion. The same properties that make 5.56 bullets fragment inside people also make it break apart when it hits wood or metal. At the time, the U.S. military was embroiled in multiple large scale urban battles across Iraq, and many special forces units had started using short-barreled rifles to make it easier to maneuver when fighting house-to-house. If your first priority is subsonic performance from a .30-caliber AR, go with the .300 AAC Blackout and heavy bullets. This is the perfect balance of barrel length for high muzzle energies, they say, without making the gun front-heavy and awkward to shoot. Some people question whether or not the 300 Blackout is effective for killing deer, and the simple answer is, yesabsolutely. I first viewed the 300 Blackout with a jaundiced eye, but it's proving to be one heck of an effective, close-range hog sweeper. Most barrel makers and benchrest shooters will tell you the best accuracy for a given bullet is obtained with a twist rate that just stabilizes the bullet. I have heard you only want to convert brass from the US to 300 Blackout brass. I would note that of those three things the Springfield Saint 300blk has only the first. Typically, these bullets are the product of thousands of hours of computer-aided design and testing and are much more expensive to make than standard practice ammo, but theyre well worth the cost. While the bullet is obviously much larger, the parent case is 5.56mm so it will fit into the chamber. And to take things a step further, what if you want to hunt animals like deer, hogs, or even elk with 300 Blackout? Instead, you want the bullet to enter the target, transfer all of its energy and lethal force to the person, and stop inside them without flying out the other side. Not sure how to make sure the gas port is properly aligned. This is why the 300 Blackout is also called the 7.6235, which corresponds to its bullet width and case length in mm, respectively. No one doubts the deer-killing performance of the 30-30, and the 300 Blackout can match or exceed that. With a 16" barrel and mid length gas system it 'should' be able to cycle using subsonic ammo even without a can. In my opinion, the bread and butter of the 300 BLK is short barrel rifle applications, especially with a suppressor (what isnt cool about a 10 300 BLK with a can and IR laser?) Momentum! In the case of 300 Blackout, you either . I spent several hours chambering dummy cartridges with a variety of bullets and measuring set-out, and in fact, I found it occurred to some extent with every bullet tested. And what are the external ballistics for subsonic 300 Blackout? This test is a good example of the penetrating power of 300 Blackout: In the video, a 300 Blackout bullet penetrates 24 inches of pinewood whereas a 5.56 bullet only penetrates 16 inches of pinewood. . What is true, though, is that you quickly reach a point of diminishing returns by increasing the length of a 300 Blackout barrel much beyond 9 inches. I found somebut not allHornady and Remington brass had crimped primers. A Magpul .300 BLK PMAG (left) and a 5.56 PMAG (right). Because if that bullet keeps going after cutting through a bad guy theres no telling who it might hit. Buy Guns Now to Avoid the Run. It can be used in AR-15s with minimal modification. The Definitive Guide to 6.5 Creedmoor vs. .308, The Second Amendment Manifesto: What Every American Should Know about Their Constitutional Right to Own Guns, 300 Blackout Ammo Is More Powerful, Efficient, and Lethal When Fired out of Short-Barreled Rifles Than 5.56 Ammo, 300 Blackout Ammo Is More Powerful Than 5.56 Ammo When Shooting Subsonic (Quiet) Bullets, 300 Blackout Ammo Is Legal and Effective for Killing Deer, 300 Blackout Ammo Can Penetrate through More Material (Walls, Trees, People . Springfield Armory recommends you seek qualified and competent training from a The reloaded rounds do plunk into the chamber and fall out if you point the rifle up. This effect is known as bullet drop, and its basically a measurement of how much the bullet deviates downward from a straight line to the target. When a bullet hits a target, the energy from the bullet is imparted to the material it hits, causing it to break apart. By utilizing a fast twist to stabilize the long heavy subsonic bullets, I suspect accuracy suffers on the lighter loads. I know Noveske makes good products, but maybe you got an out-of-spec barrel. As an added bonus, its all-copper construction means you dont have to worry about picking slivers of lead out of your steaks. For comparisons sake, lets look at the trajectory of a standard 55-grain 5.56 bullet fired under the same conditions. The only problem I ran into while handloading the .300 Blackout was with bullet set-out when the cartridge was chambered. You can expect to pay anywhere from $1.5 to $3 per round for high-quality subsonic 300 Blackout hollow points. If you plug these stats into a ballistics calculator, like this one, then you can estimate how much energy each bullet will have at different distances: 300 Blackout vs. 5.56 Bullet Energy (ftlbf). There was, however, a concern: The load would only feed about 50 percent of the time. You might think that a bullet approved by the military for killing peoplethe 5.56would be approved for killing deer and other wild game, but thats not the case everywhere. 300 BlkOut Issues: Failure to Feed, Double Feeds, Stuck Ammo by jFlacoS Sun Dec 29, 2013 2:59 pm Please help with my 300 BlackOut Rifle!!! 300 Blackout Ammo Is More Powerful, Efficient, and Lethal When Fired out of Short-Barreled Rifles Than 5.56 Ammo 300 Blackout Ammo Is More Powerful Than 5.56 Ammo When Shooting Subsonic (Quiet) Bullets 300 Blackout Ammo Is Legal and Effective for Killing Deer 300 Blackout Ammo Can Penetrate through More Material (Walls, Trees, People . Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. when loaded with fairly standard 220gr subsonic rounds, that guide presses into the projectile of the subs inside the 5.56 magazine. The 5.56 is based on and almost identical to a cartridge invented in 1959 called the .223 Remington, or 223, so youll often see them lumped together in bullet comparisons (5.56/.223 vs. 300 Blackout, for example). PRESCRIPTION 7Bullet: Berger 190-grain VLD HuntingPowder/Charge: Accurate 1680/12.2 grainsPrimer: Federal Small RifleCartridge Overall Length: 2.22 inchesMuzzle Velocity: 1,187 fps. . PROS: Straightforward design; 7" barrel twist; Great compact rifle handling character. Because velocity is critical to performance, this load should be a great match for an SBR. As youll learn later in this article, while this does make rifles much easier to use in confined spaces, it also neuters the power of the 5.56 cartridge. In lieu of any formal testing, we can look at some of the videos floating around showcasing the effectiveness of these Lehigh Bullets, like this one: As you can see, the bullet penetrates several inches into the ballistics gel and basically explodes into sharp metal fragments. Once you couple in the fact that ammunition and reloading component manufacturers produce extremely diverse bullet geometry as well, it is becoming clearer as to why you need dedicated .300 BLK magazines. The bullet drops about 2 inches at 100 yards, 4 inches at 200 yards, 1 foot at 300 yards, 2.5 feet at 400 yards, and 5 feet at 500 yards. So I recently built a 300 blk out upper and took it out to the range over the weekend and had cycling issues. Trouble with RCBS 300 Blackout Dies Not Seating Bullets Consistently March 31, 2021 If you're having trouble with RCBS or Hornady 300 blackout dies not seating bullets consistently, this should help. While there are a ton of advantageous crossovers from the .300 BLK to our beloved 5.56 NATO rifles, you might want to reconsider using your 5.56 NATO/.223 magazines for .300 BLK. Early on, the claimed goal was to have ammunition prices on par with the inexpensive .223 Rem. Predicting the trajectory of subsonic 300 Blackout bullets is difficult, as the ballistics coefficient can vary from 0.65 (very good) to 0.173 (dog doo doo). Thats enough of a drop to seriously affect your accuracy when shooting at a target 100 yards away. And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. Often referred to as simply .300 BLK, it is simply a close cousin of a .223 Rem casing (technically .221 Fireball) that has a .30 caliber bullet placed in its upsized case mouth. . than 5.56 ammo. Supersonic 300 Blackout bullets weigh 110 grains, or twice as much as standard 5.56 bullets. I love researching and writing these articles, and the more they get shared around, the more Im encouraged to write. For example, you cant increase the weight of a 5.56 bullet to more than about 70-grains before it starts causing problems. Andrew Betts served with the Arizona National Guard for over 12 years, including a tour to Afghanistan. The more a bullet slows down, the more energy it loses and the more it will drop. Magtech Full Metal Jacket Subsonic 200-grain 300 Blackout, Magtech Full Metal Jacket Supersonic 123-grain 300 Blackout. I will try some other loads and see if I can keep sub and still cycle. Finally, some .300 AAC Blackout brass has crimped primers, and there seems to be no rhyme or reason for this occurrence. The gun cycles and the bolt goes back into the fully closed position, but does not put another round in the chamber. This isnt an issue with 300 Blackout, which was designed so that it would properly cycle an AR-15 regardless of whether you use super- or subsonic ammo. We dont need to get into the nitty gritty details right now, but the long story short is that the more you increase the length of a barrel, the more you increase the muzzle energy of the bullets you shoot through it. For example, you can put any of the following uppers on any AR-15 lower . bullets hang onto it while deflecting minimally in the wind. The only downside of hollow points and frangible bullets is they typically cost about a dollar per round. So, the final word on the 300 Blackout is that if you want to use a suppressor and subsonic ammo to fire the most powerful quiet bullet possible . For now, lets focus on subsonic ammo. Fired from the MPW carbine, the six supersonic handloads produced an average 10-shot group size of 3.30 inches at 100 yards. Even after handloading, I still believe subsonic shooting is the forte of the .300 AAC Blackoutjust as J.D. Whats the Ideal Barrel Length for a 300 Blackout Rifle? The 5.56 (pronounced five-five-six), also known as 5.5645 NATO or the 556, was designed in 1980 to work with the AR-15 rifle and is the standard rifle cartridge for all NATO forces, including the United States, England, Germany, and other countries. What do I need to do to get it to cycle for him? By the time both bullets have traveled about 500 yards, theyre moving at almost the same speed. The 300 Blackout has become one of the most popular rifle cartridges available. Is the 300 Blackout just a new knickknack for tearing up targets at the range, or is it the better mousetrap weve been promised? As you can see, the 300 Blackout has about 100 (ftlbf) more energy than the 5.56 at almost every distance. The reason why a dedicated .300 BLK magazine is so crucial is because of the wide grain weight range .300 BLK works in. The recovered diameter (RD) was measured in inches across the face of the bullet in two spots and represents the average of those two measurements. To learn more about the 7,62x40WT click here. I first tried opening gas port, still wasn't perfect, switched to vihtavouri 530 powder, and works great. The NRA, its agents, officers and employees accept no responsibility for the results obtained by persons using such data and disclaim all liability for any consequential injuries or damages. Not only that, but it's also more powerful than 5.56 when fired through short-barreled rifles or when using subsonic ammo. This load was very accurate, besting the most accurate factory load I fired from the AAC MPW carbine by more than .50 inch. Its literally how much bang you get for your buck. This makes the 300 Blackout one of the most versatile and convenient cartridges you can shoot. As this bullet penetrates into someone the aluminum nose of the bullet is pushed back into the copper base. One cartridge that has taken ahold of the modern sporting rifle industry and appears to have strong staying power is the .300 AAC Blackout round. . More bullet energy on target = more potential killing power. Keep in mind, that its wildcat predecessors like the .300-221 were known to be fairly accurate with the right twist rate. . While the cross-compatibility of our .300 BLK and 5.56 NATO rifles is highly desirable, it could be a potential risk if we do not check ourselves and make sure we are putting the right rounds into the right firearm. through a short-barreled AR-15 . While the bullet is obviously much larger, the parent case is 5.56mm so it will fit into the chamber. A cartridge with a higher-pressure load contains more gunpowder, and a cartridge with a lower-pressure load contains less gunpowder. I loaded an additional 10 rounds using the original data and fired them through a CVA Scout with a 16-inch barrel. He wants to be able to run subs while he waits on his can. If you're trying to create supersonic loads with long, 150-grain or heavier bullets, you'll find powder space is limited. For example, some states like Iowa, Washington, and Minnesota only allow you to hunt deer with ammo thats .24-caliber or wider (which excludes 5.56). Another common problem with subsonic 5.56 ammo is that it often doesnt have enough energy to reliably work in semi-automatic rifles, like the AR-15. First, a bit of history on this odd cartridge. For example, a 55-grain 5.56 bullet bullet traveling just under the speed of sound1,050 fpsonly has 135 ft.lbf. All content Copyright 1998-2018, FTC disclosure: some links on this site are monetized, Removing stripped and sheared screws from a rifle, Project Guns- Gunsmithing articles and posts. Because 300 sounds more powerful than .30, which is why many companies refer to .30-caliber bullets as 300- something or other, like the 300 Winchester Magnum and 300 Norma Magnum hunting cartridgesall of which fire .30-caliber bullets. The 300 Blackout just doesn't pack enough powder to require a long tube for full combustion. certified instructor prior to handling any firearm and be sure to read your owners manual. In supersonic loads, 150-grain bullets are on the heavy side for the .300 Blackout. All in all, its probably a better cartridge for killing deer than 5.56, so not only is it legal its also preferable. Frangible bullets are a little different. For bulk practice ammo I wet tumble all my 223 (5.56) / 300 blackout after resizing on the 650/RT1500. For one thing, even if all of the gunpowder is burned, you can increase the muzzle energy of the bullet by keeping the gasses trapped inside the barrel for longer, allowing more time for them to push on the bullet. 300 BLK, Cartridge Selection, Precision Rifles, Reloading . SAAMI specifies a 1 in 8 twist in order to stabilize the heavy loads, most of the uber accurate 300 BLKs youll see have a much slower twist to work with the supersonic loads. Cutting long grooves down the nose of the bullet, an area known as the. But what does this mean for boar and deer killing performance? The 300 blackout measures 0.145" and the 5.56 measures 0.175". ***What AR-10 Buffer/Spring are you running with the Magpul UBR? The Oxford English Dictionary also defines it as the study of the effects of being fired on a bullet, cartridge, or gun.. At 200-yards drift is 4.5", energy nearly 418 f-p. A long, heavy bullet like that is going to penetrate like a steel rod, which is likely why the military is interested in it as a tactical weapon and some view it as a good self defense option. For a better experience, please enable JavaScript in your browser before proceeding. While the barrel and bolt of an AR-15 are tailormade to only shoot 5.56/.223 ammo, the rest of the gun is more or less cartridge agnostic. What's the load data? Where are you located and maybe somebody local can take a look at your gun. password, Sub Category: When combined with a suppressor, 300 Blackout ammo can give you one of the most powerful, nearly silent rifles you can have. Jones envisioned with the cartridge's predecessor, the .300 Whisper. If a 50-grain bullet from the Fireball can do in a hog of this size, the 300 Blackout should have no problems. I was shocked. Subsonic 300 Blackout bullets weigh 220 grains, or three times as much as subsonic 5.56 bullets. Most people rarely shoot at targets more than 300 yards away with either 5.56 or 300 Blackout. None of the 210-grain VLD handloads cycled the carbine's action. Forum member @Mr.Brooklyn asks the following in his profile post: "Has anyone else been having problems with the Springfield Saint Victor 300 Blackout jamming?I just purchased this firearm brand new and immediately I began having these issues my first time shooting it." I decided to post his question as a forum thread (I hope you don't mind Mr.Brooklyn), as I just also recently purchased the . One new winner* is announced every week! As a general rule, then, you want your bullets to shoot flat, or with as little drop as possible. if you use bullets that are designed to expand while moving at subsonic speeds. Remove the gas block and look for off-center carbon ring where the block meets the hole in the barrel. With a bullet that isnt over stabilized, factors that can be detrimental to accuracy, such as a concentricity issue, can be mitigated. Yet when you compare the numbers in absolute terms, the differences in bullet drop between 5.56 and 300 Blackout arent as great as many people think. Its more powerful, efficient, and lethal when fired out of short-barreled rifles than 5.56 ammo. One caliber is one hundredth of an inch, and calibers are written as decimals of 1 inch, like .30-caliber. and opinions expressed on this website are those of the authors and do not necessarily reflect the Sorry, an error occurred and we could not sign you up. This matters because in most home defense or combat scenarios, you arent going to have a good shot at your enemy. While this makes sense at first glance, its not entirely accurate. and 5.56 NATO loads. Not only do hollow points create much larger holes, they also cause the bullet to slow down much faster after entering the target, reducing the chances that itll pop out the other side. Thats not an issue with 300 Blackout ammo, though. When youre looking for plinking and practice ammo, a good rule of thumb is to look for the absolute cheapest ammo possible, and then go with whatever is slightly more expensive than that. With. Open the gas port up a little at a time until the bolt will lock back on an empty magazine. Let me know in the comments!). There are three key points worth noting about this data: Summary: You can easily make accurate shots with supersonic 300 Blackout ammo up to 300 yards away and 200 yards away with subsonic ammo. As weve already covered, a well-designed subsonic bullet can be quite lethal, but its never going to cause as much damage as that same bullet moving at supersonic speed. The more energy a bullet imparts to a target, the more damage it causes, and the likely it is to kill someone or destroy something. Worth the price if your lifes on the line, though. The only prep work I did before loading was sizing the cases, tumbling them and chamfering their necks. As you learned a moment ago, the 300 Blackout has significantly more muzzle energy when fired through short barrels than the 5.56. If youre going to use 300 Blackout ammo for hunting, though, its essential that you use hollow points, which are significantly more effective at killing big game than full metal jacketed bullets. 300 Blackout ammo in this price range will typically have brass cases (which are more reliable and cause less wear and tear on your gun than steel), full metal jacketed bullets, higher quality primers, and gunpowder thats less corrosive, extending the life of your firearm. Terminal performance was excellent. What if you prefer to hunt with subsonic 300 Blackout ammo fired through a suppressed rifle? In fact at the 300-yard mark your typical 68-77 gr .223 round will be delivering more energy than that 300-Blackout/Whisper round . 7.62x39mm is a respectable cartridge and so is .300 Blackout when it is loaded to supersonic velocity. This is certainly the prominent selling pointof the cartridge, but one of the areas the 300 BLK will sometimes lack is accuracy. Best of all, it was designed from the ground up to work in Americas favorite riflethe AR-15with only a quick change of the barrel required to shoot it. The muzzle is threaded 5/8"-24 to accept muzzle brakes, flash hiders, or a suppressor. Hence, .30-caliber is about one third of an inch. Heavy, slow moving subsonic bullets experience more bullet drop than fast, more aerodynamic bullets. Do you care about your Second Amendment rights? You only need to buy one AR-15 lower, but you can fire many different cartridges through it if you buy multiple uppers. The Best 300 Blackout Ammo for Plinking and Practice, The Best 300 Blackout Ammo for Classes and Competition, The Best 300 Blackout Ammo for Home Defense. If it's not feeding the next round you might try a lighter weight buffer or a different magazine or different type of magazine with a different spring rate. Jones chambered T/C Contender handguns for these rounds and called them Whispers because he was keeping muzzle velocities below the speed of sound. Never miss a post! The 1911 is an iconic design, and the 2011 takes it one step further. I even took the time to order a special 1:7 twist barrel from Bartlein barrel to give me the edge with the heavy loads. If you don't want to complete a build, however, Aero Precision also sells completed rifles. Check the Price. If it is mixed brass of 223/5.56 brass that was converted to 300 Blackout I have read in a couple of Forums that NATO 5.56 wall thickness creates issue when trimming or cutting it to make 300 blackout brass. This added weight also gives the bullet enough momentum to continue spinning several times after entering the target, creating an effect thats akin to a flying blender blade slicing through your prey. Machining a wide hollow point bullet out of a solid slug of copper (which expands more reliably and holds its shape better than a mixture of lead and copper). To get down to the nitty gritty; live rounds are "being left" in the chamber. Take a lookat some legitimate load development and testing and youll start to notice that it is very hard to get a 300 BLK to shoot consistently well with both a subsonic and supersonic cartridges from the same gun- a fact that has led a few major manufacturers to avoid introducing bolt-action rifles in this caliber. The 300 BLK rifle magazine is based on the original design offered by the company and provides a steel and polymer design for both a translucent smoke finish and solid black options The reliable, and trouble-free feeding system is tailored perfectly for the dimensions of the 300 BLK cartridge. In this perspective, a rifle loaded with subsonic .300 Blackout may as well be a pistol caliber carbine. Whether you're using a 7.5-inch, 10.5-inch, or even 16-inch barrel, sub-sonic .300 BLK vastly outperforms 5.56 NATO when fired from a suppressed rifle. In fact, it was faster than any factory load I tested. Ammo used was Remington 125gr supersonic and 220 subsonic. (Just make sure you dont accidentally shoot 300 Blackout ammo through your 5.56 upper, or this happens.). Lets consider the Blackout with 150-grain bullets at 2,100 fps. Not the best for accuracy. . We have to pick a number, though, so lets run with the Hornady Sub-X Subsonic 190-grain bullets, which have a ballistics coefficient of 0.437which is probably close to the average for subsonic 300 Blackout bullets. To be honest I will probably shoot the gun suppressed 90% of the time anyway. Eotech solved this problem when they created the dual zeroed XPS2-300 for the 300 Blackout caliber in both super and subsonic. My problem is that once you drop the bullet weight to gain enough powder to make the 300 Blackout supersonic/high-velocity so that it will actually cycle in your average AR-15, you gain nothing over the .223 round. On some well-known and established forums, youll note the majority of load development occurs at short ranges with 50 yards being common and 25yard groups appearing at times! The military was interested in this kind of performance for clandestine operations, I assume. To be fair, .300 Blackout is not actually terrible in its own right, it is just that the primary purpose for having one is to shoot subsonic ammunition and subsonic ammunition really is terrible for defense. Well talk more about how the 5.56 and 300 Blackout stack up against one another in a moment. The bolt will not lock back with an empty mag. Terminal ballistics is the study of how the bullet behaves after it hits the target. You see, just because all of the gunpowder in a cartridge is burned doesnt mean that increasing the barrel length doesnt offer any benefits. Spikes likes to use "HeavY" buffers in their kits for .223, 300 BlkOut Issues: Failure to Feed, Double Feeds, Stuck Ammo,, Re: 300 BlkOut Issues: Failure to Feed, Double Feeds, Stuck. Posted: 2/5/2017 7:33:39 PM EST [#13] Quote History AAC took the .300 Whisper, made slight modifications to the case and bullet to improve reliability, accuracy, and performance, and birthed the 300 Blackout (theres more to this story, but thats the long and short of it). The only problem I ran into while handloading the .300 Blackout was with bullet set-out when the cartridge was chambered. The .300 Blackout has had a few years to grow now. In the case of home defense ammo, you generally dont want the bullet to go through-and-through as its called. bullet all the way up to 220 grains. It's a fun, lower velocity round that can really pack a punch. A cartridge load for 16-inch barrels with slightly less gunpowder to keep the velocity under the speed of sound when fired out of longer-barreled rifles. Hornady 300 Blackout 125-grain Full Metal Jacket Frontier (Supersonic), Hornady 300 Blackout 125-grain Hollow Point American Gunner (Supersonic), Hornady 300 Blackout 208-grain A-MAX Hornady BLACK (Subsonic). The 5.56 starts out moving faster than the 300 Blackout, but loses velocity quickly due to its light weight and low ballistics coefficient. The 7.62x40WT is a nifty little cartridge for the modern hunter who wants to stalk game with a standard sized AR-15 M16/M4. articles and videos are considered to be suggestions and not recommendations from Springfield Armory. TS Customs Quick Adjust Knob for KMW Loggerhead Cheekpiece, Modular Driven Technologies (MDT) HS3 Chassis Review: Part 2 Shooting the MDT HS3 Chassis System, Rifleshooter.coms 50-25-7 Practical Carbine Standard, Shortening a shotgun stock and fitting a recoil pad, Completing an 80% 10/22 Select Fire LLC RAZOR Semiautomatic Receiver. Theyre designed to lock onto the gun and then push fresh cartridges into the inside of the gun so they can be chambered and fired. Next, I tested terminal performance by firing each load into blocks of 10-percent ordnance gelatin. Let's consider the Blackout with 150-grain bullets at 2,100 fps. You have to step up to the true heavyweights to get below the speed of sound. 300 blackout uses very fast pistol powders and the pressure spikes optimum for cycling happens early. Just like with the 190-grain VLD handload and most factory subsonic loads, bullet expansion was nonexistent and penetration was excessive. Weakening key points along the length of the ogive so that slivers of the bullet poke out at angles designed to cause maximum trauma inside the target. Either the bullet was slipping forward in the case when the cartridge was chambered, or the carbine just did not like the AccuBond. In the case of hunting ammo, you want your bullet to penetrate deep into the animal and if possible, go completely throughentering one side and flying out the other. Magazines, often incorrectly referred to as clips, are spring-loaded metal or plastic containers that hold ammunition. The bullets also behaved very differently after entering the wood. The alternative to not using an actual .300 BLK magazine is to employ a 5.56 NATO/.223 magazine and then exercise more than stringent ammunition management to ensure a failure does not occur.
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