problems with 300 blackout

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. Summary: Subsonic 300 Blackout is significantly more powerful than subsonic 5.56, 9mm, and even .308, which makes a 300 Blackout rifle one of the most powerful nearly Hollywood quiet rifles you can have. Thats why I recommend Lehigh Defense 300 AAC Blackout 78-grain High Velocity Close Quarters cartridge. For a better experience, please enable JavaScript in your browser before proceeding. Copyright 2023 | Privacy and Disclosure | Curation Policy | DMCA Policy. by Eddy Coleman, Gilmer, Texas Eddy's Reloads 5.57K subscribers Subscribe 21K views 6 years ago Repairing reloaded bullets that made a 300 blackouts. Theres a lot of crossover between home defense ammo and hunting ammo because the intended purpose of both is similar. Than 5.56 Ammo, 300 Blackout Ammo Can Be Used in AR-15s with Minimal Modification. That might seem like a lot, but remember this is specialized hunting ammo. Not the best for accuracy. You gain a .30 caliber cartridge that can be fired from a traditional 5.56 NATO/.223 lower receiver (Whats the difference between 5.56 and .223? I used load data from Hodgdon and Accurate, but my first attempt yielded supersonic velocities. The only downside of hollow points and frangible bullets is they typically cost about a dollar per round. Penetration indicates the point in the gel block where the largest piece of the bullet came to rest in inches. In supersonic loads, 150-grain bullets are on the heavy side for the .300 Blackout. The Hornady Full Metal Jacket Frontier 300 Blackout ammo is their value target practice cartridge, but since its Hornady its more than good enough for classes and competition. It may not display this or other websites correctly. Any 300 Blackout upper should run on any milspec 5.56 lower without modification. To create this kind of chart, you need a few pieces of information: The topic of ballistics coefficients (BC) will get an article of its own, but the short story is that BC is a measure of how effectively a bullet is able to slip through the air and maintain its velocity after being fired. articles and videos are considered to be suggestions and not recommendations from Springfield Armory. I have tried a lighter weight buffer as well. 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. Next, I tested terminal performance by firing each load into blocks of 10-percent ordnance gelatin. I have a CMMG 8.5" barrel. PRESCRIPTION 6Bullet: 150-grain Nosler Ballistic TipPowder/Charge: Hodgdon Lil'Gun/17.0 grainsPrimer: Federal Small RifleCartridge Overall Length: 2.18 inchesMuzzle Velocity: 2,058 fps. None of the primers in Lehigh Defense brass were crimped, but all of them in the Federal brass were crimped. Having a high muzzle energy is nice, but it wont matter if the bullet loses most of this energy before it hits your target. The bottom line is the Lehigh Defense 300 AAC Blackout 78-grain High Velocity Close Quarters cartridge is one of the single best cartridges for home defense you can buy. After reducing the powder charge, eight of the next 10 rounds were subsonic. Some bullets require a certain barrel length to reach maximum energy, and using shorter barrels makes them far less effective. 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. This will give you good enough performance for short-range target practice (controlled mayhem?) The barrel is 16" with a mid length. I dont want to knock the 30-30 here, but its also true that the Blackout is more versatile than the 30-30. The vast majority of states, though, including my native Virginia, dont allow you to shoot deer with 5.56 ammo, which presents a problem: How can you use your beloved AR-15 to go deer hunting? They arent exactly the same, but they have nearly the same performance and can be thought of as the same cartridge when it comes to ballistics comparisons. First, a bit of history on this odd cartridge. The same properties that make 5.56 bullets fragment inside people also make it break apart when it hits wood or metal. He wants to be able to run subs while he waits on his can. That way, you can practice on the cheap while maintaining your skill with home defense cartridges. This is certainly the prominent selling point of the cartridge, but one of the areas the 300 BLK will sometimes lack is accuracy. The 300 Blackout, on the other hand, is designed to reach maximum muzzle energy when fired through a 9-inch barrel. 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. Like the same mid-length gas that's on a 5.56/223 rifle? If you're going to taper-crimp, trimming cases to the same length will take care of half the problem. The bullet almost exploded inside the gel block, shredding the first 8 inches. Itll reliably kill deer, hogs, and people within those ranges, too. This additional mass gives the 300 Blackout a lot more momentum to push through obstacles and into your target. . You must log in or register to reply here. Why? 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 . and 5.56 NATO loads. PCCs may seem like a good idea at first glance, but when you get down to brass tacks they offer all of the disadvantages of a rifle (too large to conceal or carry conveniently and not easily operated with one hand) with the primary disadvantage of a pistol (weak ammunition). Do you want to know why the right to bear arms exists, why its worth protecting, and what you can do right now to save it? . External ballistics is the study of how a bullet behaves as it flies to the target. I will try some other loads and see if I can keep sub and still cycle. For example, I have an AR-15 upper that fires 5.4539, but I have to be careful which magazines I use as some of them simply wont feed this Russian ammo properly. I like my 300 BLK, but see it for what it is. This graph shows the muzzle energy for a 110-grain 300 Blackout and a 55-grain 5.56 bullet fired from seven of the most commonly used rifle barrel lengths. Frankenstein AR-15 troubleshooting question, .300 Blackout/Whisper Ballistics Gel Results, retrieve your Due to the bullets light weight, its able to reach a muzzle velocity of 2,800 fpsalmost as fast as a 5.56 and much faster than standard 300 Blackout ammo. or do any combination of those things . After a second or two, youre pushing as hard as you possibly canyour powder has been completely burnedand you cant exert any more force on the car. (Not important in my opinion, but worth knowing if youre concerned about the government keeping tabs on your arsenal). One of the benefits of 300 Blackout ammo is that there are umpteen different bullet designs to choose from. Lining up and Picking Sides - A WW3 Story. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Subsonic bullets travel slower than the speed of sound, which means they dont produce a sonic boom and thus can be extremely quiet when paired with a suppressor. When a bullet hits a target, the energy from the bullet is imparted to the material it hits, causing it to break apart. 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. There is no argument that shooting a quiet rifle is a lot of fun, but fun does not stop bad men from doing bad things and subsonic bullets dont do a great job of stopping them, either. 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. Its also moving considerably slower from the get-go, though, and experiences more bullet drop as a result. Its base, capped with a bit of lead core, penetrated to approximately 15 inches but was only about the size of an aspirin. Finally, they also give you a choice between two different cartridge loads, which refers to how much gunpowder is loaded into the case of a cartridge. 300 blackout uses very fast pistol powders and the pressure spikes optimum for cycling happens early. When frangible bullets hit a hard target, like a wall, they disintegrate into dust without passing through the target. I tried this for several rounds with the same thing each time. If you spent a lot of time with your 300 BLK and couldnt get the precision you wanted out of it, maybe it wasnt you? Like airplanes, once in flight bullets have to overcome two main obstacles to reach their target: Air resistance is also referred to as drag. All AR-15 uppers are standardized to work with AR-15 lowers, so you know that the two parts will always match, too. Many states dont allow hunting deer or any other large game with 5.56 or other similar bullets like .223 Remington, although the details are confusing. I am using Lil'gun powder. The .300 Blackout has had a few years to grow now. Summary: When it comes to rifles with barrels less than 16-inches long, though, the 300 Blackout is more lethal than 5.56. The car begins to move, and at this point you could stop pushing and let it coast forward a few feet. All Rights Reserved. This is due to the 300 Blackouts bullet and case design, which allow the gunpowder to be more quickly and efficiently burned in a shorter barrel. Early on, the claimed goal was to have ammunition prices on par with the inexpensive .223 Rem. It can penetrate through more material (walls, trees, people . Apparently not. Apparently, the story goes that an unnamed special missions unit in the U.S. Army asked for a round that could fit inside a .30-caliber rifle, and would be usable with any AR weapon. I also have the problem, that the 300 neck is always 2-3mm to high, so that I need to re-size the trimmed cases again. Confusing 6ARC AR15 Gas Issue After Switching to Rifle +1 Barrel, Piston conversion and appropriate buffer and spring. With subsonic ammo and a suppressor, your 300 Blackout will also be as quiet as its possible for a gun to be and significantly more powerful than 5.56 and 9mm. If your life is really in danger, and you want the maximize the chances of taking your assailant down as fast as possible, you want to use supersonic ammo (and ideally, something that doesnt overpenetrate). As long as the cartridges you want to use will fit in AR-15 magazines, then they will likely work in any AR-15 lower receiver. At 500 yards, the bullet has dropped almost 9 feet, making it more or less impossible to hit your target. Longer barrels will produce more muzzle energy, of course, but not substantially so. 300 Blackout ammo is legal for hunting deer in almost every state as long as you use supersonic ammo, and its legal in many states with subsonic ammo, too. The cartridge simply cannot push them fast enough to ensure expansion. I would note that of those three things the Springfield Saint 300blk has only the first. Ballistics data gives you a means of comparing one cartridge to another so that you can tease out their strengths and weaknesses and decide which one is the best choice for different jobs. Sounds like the case sticking in the chamber is the root of your problem. Bill Marr The reason why a dedicated .300 BLK magazine is so crucial is because of the wide grain weight range .300 BLK works in. So, having a dedicated .300 BLK magazine will not only help safeguardagainst such risks, it will also guarantee more reliable functioning and feeding for your firearm. The 300 Blackout was designed to be used with the same boltthe part of the gun that grabs the back of the cartridge, pushes it into the chamber, and extracts it after firingas the 5.56, meaning both cases have to have almost the same dimensions. If you want to shoot it through your AR-15, all you have to do is buy a 300 Blackout upper, load up your regular AR magazines with 300 Blackout ammo, and start shooting. . AR. I spent a lot of time (and money) building this rifle. Solution for 300 AAC Blackout jamming! WARNING: Technical data and information contained herein are intended to provide information based upon the limited experience of individuals under specific conditions and circumstances. 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. With the right shot, a 300 Blackout will kill just about any wild animal in North America. VERDICT: I reviewed an "American" a few . It will eject the spent brass, but not pickup a new round. There are five main reasons people use 300 Blackout ammo over 5.56 and other similar rifle cartridges: Lets cover each of these points briefly. The .300 Blackout started out as a military round. And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. Their 300 Blackout ammo is a little pricey but still affordable, and they were one of the first companies to start producing the cartridge after it was invented. All technical data in this publication, especially for handloading, reflect the limited experience of individuals using specific tools, products, equipment and components under specific conditions and circumstances not necessarily reported in the article and over which the National Rifle Association (NRA) has no control. Technically, the only proper names for the cartridge are the 300 AAC Blackout or 300 BLK, but most people refer to it simply as the 300 Blackout, so I did the same in this article for the sake of simplicity. Worth the price if your lifes on the line, though. We cannot show the process itself of resolving the problem due to YouTube TOS. . Summary: The 300 AAC Blackout is cartridge designed to work in AR-15s and other rifles with shorter-than-average barrels. Increase the amount of energy the bullet retains. It would work well for defense and tactical applications; the bullet's bonded construction would help it hold together when encountering a barrier. A new large format pistol from the oldest gun manufacturer in the world. As an added bonus, its all-copper construction means you dont have to worry about picking slivers of lead out of your steaks. At 400 yards, though, the bullet has dropped almost 5 feet. 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. 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. The 300 Blackout cartridge was designed from the ground up to be fired through AR-15s, and as a result it doesn't suffer from any of the reliability problems of other cartridges. It may not display this or other websites correctly. If so, that's your problem. 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. However, we show the problem and some testing. These cartridges are almost identical in design and price, but the hollow points also double as effective hunting cartridges for animals under 50 pounds. Its deadlier than 5.56 and 9mm when fired out of short-barrels. . Thus, Kevin Brittingham, the founder and CEO of AAC, tasked one of his chief engineers, Robert Silvers, to find a solution. You will increase the muzzle energy of the bullet, but each additional inch of barrel beyond 9 inches results in less and less of an increase in muzzle energy. This causes the animal to bleed faster and die sooner than if the bullet only enters but doesnt exit. However, you'll only have to do it once. Group size was halved to a respectable measurement of around 2 inches. I have a Seekins Lower & Upper, NOVESKE 14.5" Barrel, KAC URX 3.1 13.5" rail, Spikes Tactical 5.56 BCG, Spikes Tactical Milspec Buffer Tube Kit, and PRI Gasbuster Charging Handle. In other words, the drop of 5.56 bullets is about half as much at any given range as supersonic 300 Blackout bullets. For example, the absolute cheapest you can get 300 blackout is generally around 50 cents per round, so expect to play closer to 60 to 75 cents per round for your everyday practice ammo. . The copper base of the bullet is weakened in key spots so that when its forced to expand by the aluminum nose of the bullet, it flies apart into several sharp copper shards. All else being equal, a bullet with a lower BC will slow down faster, whereas a bullet with a higher BC will maintain its velocity for longer. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. That bullet is more blown open than a T-1000 after a run-in with Arnold Schwarzenegger. Summary: The sweet spot between maneuverability and muzzle energy for a 300 Blackout barrel is around 7 to 9 inches, although you can get slightly higher muzzle energies with longer barrels. Buy a new 300 Blackout upper, slap it on your AR-15, buy some 300 Blackout ammo, and suddenly your good ol black rifle is ready to slot ungulates. The bullet drops about 4 inches at 100 yards, 2.5 feet at 200 yards, 8 feet at 300 yards, 18 feet at 400 yards, and 30 feet at 500 yards. 300 BLK, Cartridge Selection, Precision Rifles, Reloading Neck tension can vary between pieces of brass. Lehigh Defense 300 AAC Blackout 78-grain High Velocity Close Quarters. Please help with my 300 BlackOut Rifle!!! Enter your email address to subscribe and receive notifications of new posts by email. It was first concocted by J.D. than 5.56 ammo. If your first priority is subsonic performance from a .30-caliber AR, go with the .300 AAC Blackout and heavy bullets. If a 300 Blackout upper will not work on a standard milspec lower then the problem is with the upper, not the lower. As a result, you generally want your home defense ammo to . Granted, not all obstacles are going to be soft pinewood, but this does illustrate just how much more effective the 300 Blackout is at penetration than the 5.56. 4500$, Caliber: This showcases the dual purpose of the round. I rounded up a variety of bullets I suspected would offer terminal performance not available from factory supersonic ammo, and then went to work at the loading press. But what does this mean for boar and deer killing performance? Please share the pictures of the groups with us on Facebook and what load you are using, I think there is a lot of interest. As you learned a moment ago, the 300 Blackout has significantly more muzzle energy when fired through short barrels than the 5.56. And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. This New Hampshire-based company is unique in that they focus solely on making subsonic cartridges (hence the name), so its no surprise that 300 Blackout is right up their alley. Although more difficult, you can even adjust for the 2 feet of drop at 300 yards. I have used multiple mags with no success. The Ranch Rifle was not quite as accurate as we had hoped, averaging five-shot groups approaching 3 inches from center to center on outside shots. Now if only theyd chamber it in a lever action rifle! 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. If youve spent any time poking around online, youve likely heard its . Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. This bullet was purpose-built by Nosler for the .300 Blackout and the .30 Rem. Are you running a can with your subsonic and are the subs factory or handloads? This table shows the velocity of the three bullets weve discussed so far at six different ranges. Known for its ability to deliver heavy subsonic bullets for standard AR magazines while cycling the action in suppressed applications, [], Ive done a few Special Purpose Rifle (SPR) builds over the years and was always happy with the results. I found somebut not allHornady and Remington brass had crimped primers. 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. Bullets with more drop arent inherently less accurate, per se, but the more a bullet drops, the more skill is required to adjust for this so that the bullet hits where intended. without spending more than you need to. Another reason as to why a dedicated .300 BLK magazine would be beneficial is the markings on them. Wish someone told you this before? 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. . He's also a writer for the NRA Shooting Sports USA, TheFirearmBlog, Sierra Bullets, All Outdoor, OutdoorHub, and Boyds Gunstocks. In the case of hunting, you want to kill the target as quickly and humanely as possible. 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. That's including two dismal groups caused by the inability to taper-crimp Nosler bullets. You see, just because all of the gunpowder in a cartridge is burned doesnt mean that increasing the barrel length doesnt offer any benefits. Maximum velocity deviation dropped from 139 fps to 35 fps, and the group shrank to 2.96 inches. For comparisons sake, lets look at the trajectory of a standard 55-grain 5.56 bullet fired under the same conditions. Now lets look at how different barrel lengths affect the muzzle energy of these two bullets. For all intents and purposes, a good maximum range for supersonic 300 Blackout ammo is probably around 300 yards. Magtech Full Metal Jacket Subsonic 200-grain 300 Blackout, Magtech Full Metal Jacket Supersonic 123-grain 300 Blackout. 300 Blackout vs. 5.56 Velocity Loss (In Feet Per Second). One caliber is one hundredth of an inch, and calibers are written as decimals of 1 inch, like .30-caliber. Potentially both. by jFlacoS Sun Dec 29, 2013 11:13 am, Post So while some of us have chased after .300 BLK for its usefulness in hunting medium-size game, potentially defense, or even for the recreational enjoyment of the round, its safe to say that we will all experience more pleasurable range time with a dedicated .300 BLK magazine for our .300 BLK firearms. One problem with many subsonic 300 Blackout cartridges is that theyre loaded with enough gunpowder to achieve maximum subsonic velocityabout 1,050 fpsout of a 16-inch barrel. 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. It should be equally or more powerful than the 7.6239 cartridge (AK-47 ammo) when fired from 9-inch barrel. Frangible bullets are a little different. . He bought one of these https://www.americantactical.us/6334/detail.html and it won't cycle the 208grn hornady amax subsonics without suppressor. Re: 300 blackout cycling issue???? Subsonic 300 Blackout bullets weigh 220 grains, or three times as much as subsonic 5.56 bullets. Back in 2012, I reviewed the 300 BLK in a 16 AAC upper with Remington super sonic and subsonic loads, a link to the post can be found here. The 300 BLK has such a small case you are effectively loading pistol powder into a rifle cartridge. A 300 Blackout bullet fired from a 14.5-inch barrel has almost the same muzzle energy as a 5.56 bullet fired from a 20-inch barrel. Two reasons, case capacity and barrel twist. It may not be a high probability, but the point isnt that you must be able to penetrate armor. Now, to calculate a bullets energy on target, you need a few pieces of data: Bullets have the most energy right after they exit the muzzle of the gun, and this number is referred to as a bullets muzzle energy.

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