Then show it finally being reso. The gas tube is pinned. 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. Its more expensive ($1.4 most places), but its some of the most accurate subsonic 300 Blackout ammo you can find. The second a bullet leaves the muzzle of a gun, gravity begins pulling it toward the ground. Its more powerful, efficient, and lethal when fired out of short-barreled rifles than 5.56 ammo. The ability to shoot 30 caliber bullets from a standard AR-15 M16/M4 style rifle bysimply changing the barrel and ammunition has made the 300 AAC Blackout (300 BLK) a popular choice for AR shooters looking for an alternative to 223 Remington/5.56 NATO. Even with vertical stringing apparenta result of the supersonic/subsonic velocity mixthe 190-grain VLD load was more accurate than any of the subsonic factory loads I tested. Instead of being made of solid lead and copper, like most bullets, frangible bullets are made of a mixture of compressed metal powders. In the case of home defense, the main concern is the bullet either missing or passing through your wouldbe assailant, and hitting a loved one in another room, flying through the wall and hitting someone next door, blowing away the neighbors dog, or all of the above. The Oxford English Dictionary also defines it as the study of the effects of being fired on a bullet, cartridge, or gun.. He is a Glock and Smith & Wesson Certified Armorer as well. Over the past few years, Aero Precision has made a name for itself, especially among AR-15 builders. When I built mine, I settled on a 22 barrel, [], The 300 AAC Blackout (300 BLK) is a popular alternativecartridgein the AR-15/M16 M4 (AR) community. 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. The more a bullet slows down, the more energy it loses and the more it will drop. And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. Oops, there's been an error. by jFlacoS Sun Dec 29, 2013 11:13 am, Post Are you running a can with your subsonic and are the subs factory or handloads? Magazines have a hard time feeding when you pack a mag . This had a horrible effect on accuracy. 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. Thought a Beretta shotgun was out of your budget? When you try to shoot further than that, though, youre better off using a different cartridge. In 2011 AAC filed with SAAMI so the 300 Blackout could be chambered and loaded by anyone. It will eject the spent brass, but not pickup a new round. As you learned a moment ago, the 300 Blackout was custom designed to be fired through the AR-15. The data has not otherwise been tested or verified by the NRA. You see, just because all of the gunpowder in a cartridge is burned doesnt mean that increasing the barrel length doesnt offer any benefits. To increase bullet energy on target, increase the barrel length or the bullets ballistics coefficient. And in case you prefer to scrutinize the data yourself, here it is in table format: 300 Blackout Ballistics Based on Barrel Length. My personal experience mirrors this. External ballistics is the study of how a bullet behaves as it flies to the target. lighter buffer? You grab some friends, line up behind the car, put your hands on the bumper, and push as hard as you can. 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. The problem becomes even more pronounced when the round is fired from a carbine or pistol-length barrel, and that's where .300 Blackout steps in. The only prep work I did before loading was sizing the cases, tumbling them and chamfering their necks. A big part of the attraction to having .300 Blackout is to put a silencer on it and feel super operator pew-pewing subsonic ammo. It may not display this or other websites correctly. Springfield Armory recommends you seek qualified and competent training from a 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. Youll often hear people say that the ideal barrel for shooting 300 Blackout is 8 or 9 inches. With some loadsparticularly those using the 125-grain Nosler AccuBond and 150-grain Nosler Ballistic Tipthe bullet would migrate forward in the case when the cartridge entered the chamber. 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. 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. It should work reliably when using low-powered (subsonic) or high-powered (supersonic) ammo with or without a suppressor. If you are looking for an easy to tune, high accuracy round, you may be better served elsewhere. A cartridge with a higher-pressure load contains more gunpowder, and a cartridge with a lower-pressure load contains less gunpowder. It should work in AR-15 rifles and magazines, with only a change of the barrel required to make it operational. Other factory ammo and reloads with CCI 400's were 100%. Also guessing that you've already checked that your gas block is properly lined up with the port; opening up the port would be my last resort unless it's one of the barrels known for having small ports to begin with (have to search around the net, don't remember which they were but there was some discussion of them a while back). Like the 125-grain Nosler AccuBond, this bullet delivered sub-par accuracy in the AAC carbine. Like the same mid-length gas that's on a 5.56/223 rifle? It can penetrate through more material (walls, trees, people . Set-out was a noticeable problem only with the Nosler bullets, but it could have been occurring with other bullets, too, and just not showing up as glaringly on target. When frangible bullets hit a hard target, like a wall, they disintegrate into dust without passing through the target. The 5.56 is more or less the opposite of the .50 BMGits half as wide and 10 times lightermaking it pretty worthless for penetrating through barriers. *Must have a registered ARFCOM account to win. Increasing it from 8 inches to 16 inches, though, might only result in a 20% increase in muzzle energy. There are many different kinds of pistols out there, and whats right for one person might not be right for you. Some say you want to use the fastest, flattest-shooting bullets you can find. All three of the rifles tested in this group had trouble feeding the stubby 300 Blackout cartridges if we just dropped the rounds into the opening of actions generally designed for longer cases. . Whats your take on 300 Blackout ammo? and 5.56 NATO loads. The set-out problem is caused by inadequate neck tension and trying to taper-crimp cases that are not all exactly the same length. They offer an almost identical practice cartridge that uses the same amount of gunpowder, but with a full metal jacketed bullet instead of their Machined Selous Expander bullet, which drops the price to a more affordable 98 cents per round. Just for kicks, I also assembled subsonic loads with two heavyweight bullets. In fact, it was faster than any factory load I tested. I have tried a lighter spring and heavy lubrication with no success. In the gel, it acted like a high-velocity pistol bullet, which it isSpeer designed it for the .30 Carbine cartridge. without overly sacrificing bullet performance and lethality . You can find factory, boxed ammunition anywhere from a 110-gr. 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. 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. Thats not an issue with 300 Blackout ammo, though. . A grain is a unit of measurement used in the firearms industry for measuring bullet weights, equivalent to about 1/15th of a gram. August 17, 2016 Lehigh Defense 300 AAC Blackout 78-grain High Velocity Close Quarters. Sounds like the case sticking in the chamber is the root of your problem. | An Official Journal Of The NRA, Should You Carry Your Gun With an Empty Chamber? Eotech solved this problem when they created the dual zeroed XPS2-300 for the 300 Blackout caliber in both super and subsonic. It appears woefully underpowered, yet, thanks to the higher B.C bullets it shoots, it outperforms our beloved old 30-30. It is a shame, it never caught on as much as it should have. You can fire all of these cartridges through what looks and feels like more or less the same gun, which means you dont have to get used to shooting and cleaning a new rifle. The 300 Blackout has become one of the most popular rifle cartridges available. Reloading 101: Measuring group size and converting to MOA, Remington 700 SPS 243 Win to 6 Creedmoor conversion: Budget precision rifle, Designed to bridge the gap between 308 Winchester/7.62 NATO and 50 BMG, the 338 Lapua Magnum (8.670) has developed an impressivefollowing with long range shooters. Visit his YouTube Channel for more great shooting information. 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. This load should also work well in a self-defense role where over-penetration is a concern. There are a few facts worth noting about this data: In other words, the 300 Blackout beats the 5.56 like its a 9/11 hijacker locked away in Guantanamo Bay. The AccuBond's jacket is thicker than most conventional bullets, and the core is not pure, soft lead, making it harder for a taper crimp to take hold. Jones chambered T/C Contender handguns for these rounds and called them Whispers because he was keeping muzzle velocities below the speed of sound. Ammo used was Remington 125gr supersonic and 220 subsonic. Penetration was deep due to lack of expansion, but the wound cavity was narrow. For now, lets focus on subsonic ammo. 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. I tried 3 different mags, Pmag, Victory and GI, and it had the same problem. This bullet was purpose-built by Nosler for the .300 Blackout and the .30 Rem. Today it is perhaps best known as a self-defense and military round, but gaining the spotlight as an effective hog killer, especially when combined with a suppressor to really muffle the report. by smustian Sun Dec 29, 2013 1:08 pm, Powered by phpBB Forum Software phpBB Limited. For example, a 220-grain 300 Blackout bullet moving at 1,050 fps has 539 ft.lbffar more than both the 5.56 and the 9mm. Flat nose rounds do not feed and again single feeding is difficult and requires pointing the muzzle towards the ground and getting the nose of the round into the chamber and out of the gap. It fires a .30-caliber, 110 to 220-grain bullet and reliably works with and without a suppressor. 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. Frankenstein AR-15 troubleshooting question, .300 Blackout/Whisper Ballistics Gel Results, retrieve your 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. The bullets also behaved very differently after entering the wood. Odd, yes, but it has a lot of benefits for hunters and shooters alike. The best way to understand bullet drop is to visualize it, which is easy if you use a ballistics calculator. Copyright 1996-2023 AR15.COM LLC. 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. 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 . 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. If you live above ground, though, then every bullet that doesnt stick in your assailant could hit someone who didnt deserve it, and thats not cool. While the bullet is obviously much larger, the parent case is 5.56mm so it will fit into the chamber. Neck tension can vary between pieces of brass. The .300 Blackout has had a few years to grow now. Summary: The 300 AAC Blackout is cartridge designed to work in AR-15s and other rifles with shorter-than-average barrels. Should you want performance at both ends of the velocity spectrum, then the .300 AAC Blackout is a good choice, and you can make it even better by using a variety of bullets and recipes through handloading. Advanced Armament Corporation tweaked the round for solid performance in the M4 rifle. Jason Imhoff then drafted the specifications for the cartridge that would eventually be approved by SAAMI. A new large format pistol from the oldest gun manufacturer in the world. In other words, the drop of 5.56 bullets is about half as much at any given range as supersonic 300 Blackout bullets. While the bullet is obviously much larger, the parent case is 5.56mm so it will fit into the chamber. Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. Subsonic ammo is lower-powered ammo that only propels bullets to just below the speed of sound. The 300 BLK has such a small case you are effectively loading pistol powder into a rifle cartridge. The basis of their argument is that you want your rifle to have a barrel thats just long enough for all of the gunpowder to burn, and no longer. And heres how it looks compared to several other common rifle cartridges: The three cartridges on the left are different kinds of 300 Blackout ammo, followed by a 5.56 cartridge and a 7.6239 cartridge on the right. Keep in mind, that its wildcat predecessors like the .300-221 were known to be fairly accurate with the right twist rate. When combined with a suppressor, 300 Blackout ammo can give you one of the most powerful, nearly silent rifles you can have. The 300 blackout measures 0.145" and the 5.56 measures 0.175". Jones of SSK Industries in the 1990s as part of his Whisper series of cartridges based on the 221 Fireball. For my part, Ive become thoroughly convinced that the 300 Blackout is here to stay, and that it deserves its newfound following. . For bulk practice ammo I wet tumble all my 223 (5.56) / 300 blackout after resizing on the 650/RT1500. In the AAC MPW carbine, the 10-shot, 100-yard group measured 1.81 inches. While this makes sense at first glance, its not entirely accurate. If so, then you want to read my latest bookThe Second Amendment Manifesto: What Every American Should Know about Their Constitutional Right to Own Guns. If it's ejecting okay where does the spent brass land? The Savage Axis II also builds a little weight into the tube with the diameter just to the rear of the 5824 threads coming in at 0.75 inches. Energy is measured in foot-pounds of force (ftlbf), or Joules (J) if you prefer the metric system. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized, Removing stripped and sheared screws from a rifle, Project Guns- Gunsmithing articles and posts. Blackout ammo is loaded with a surprising variety of bullets from 78-grains to 220-grains with 110-grains quite popular at 2,300 fps to 2,400 fps. I took no special pains putting these loads together. 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. All else being equal, you want your bullet to retain as much energy as possible by the time it hits your target. With an impact velocity of more than 2,200 fps, the Hornady SP bullet achieved a frontal diameter of more than .50 inch when shot into gelatin. AR. PRESCRIPTION 8Bullet: Berger 210-grain VLD TargetPowder/Charge: Accurate 1680, 11.8 grains Primer: Federal Small Rifle Cartridge Overall Length: 2.22 inchesMuzzle Velocity: 1,137 fps. The Blackout with a 220- or 225-grain bullet can be driven at least 1,000 fps from a 16" barrel to give about 488 foot pounds of energy at the muzzle. Its also common for cheap, low-quality ammo to have varying amounts of gunpowder from cartridge to cartridge, which can decrease accuracy. 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. Revisiting the Suppressed .300 Blackout for Survival. 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. Apparently not. PRESCRIPTION 2Bullet: 110-grain Speer Deep Curl RNPowder/Charge: Hodgdon Lil'Gun, 19.3 grainsPrimer: Federal Small RifleCartridge Overall Length: 1.77 inchesMuzzle Velocity: 2,401 fps. 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. 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. . However, we show the problem and some testing. With an impact velocity of 1,920 fps, this bullet did not expand at all and begin tumbling when the polymer tip came off after about 12 inches of penetration. Aluminum is much lighter than copper or lead, which is why this bullet only weighs 78 grains versus 115 grains for most supersonic 300 Blackout bullets. Theres a lot of crossover between home defense ammo and hunting ammo because the intended purpose of both is similar. AR brass has thicker neck walls than .300 AAC Blackout brass, sizing without the expander ball will still increase the neck tension in loads of the latter. I'm having a similar issue with a friends blackout pistol. VERDICT: I reviewed an "American" a few . If so, that's your problem. Though I had used the 110-grain Speer Deep Curl for plinking quite a bit, I had never tested its terminal performance before this project. At 500 yards, the bullet has dropped almost 9 feet, making it more or less impossible to hit your target. The idea behind the .300 Blackout was to try to fix all these problems while retaining the format. When the tip came off, the bullet slightly opened up and began tumbling, which caused the core to separate from the jacket. I was even able to switch back to heavy buffer and m16 spring. Beyond the upgrade in bullet diameter, the 300 BLK offers the versatility of heavy 220 grain plus subsonic projectiles as well as lighter supersonic offerings. Discreet Ballistics also went to great pains to ensure that the bullet was as accurate as possible when fired through a suppressor, which is their modus operandi. A battery of .300 BLK owners might experience perfect functioning of 5.56 NATO/.223 magazines with their .300 BLK firearms, while others may bellow about their woes and despair. 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. Aero Precision M4E1 Complete Rifle. The chief advantage of 300 Blackout is its versatility. 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. I would note that of those three things the Springfield Saint 300blk has only the first. The casethe brass part of the cartridge that holds the gunpowderof the 300 Blackout is the exact same width as the 5.5645 at the bottom, but is considerably wider toward the top of the case where the bullet is held. I found somebut not allHornady and Remington brass had crimped primers. Ballistics is the science of projectiles and firearms. Bullets in the Barnes Triple-Shock family typically need more velocity than traditional cup-and-core bullets to expand, and the .300 Blackout just does not generate a lot of velocity. . As deer ammo goes, that's slow, but only 200 fps slower than the old 30-30. 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. Summary: The 300 Blackout is much better than the 5.56 at penetrating obstacles like rocks, walls, and trees, making it easier to hit targets hiding behind cover. The first thing you need to know about 300 Blackout external ballistics, is that this cartridge wasnt designed to shoot over long ranges. The reloaded rounds do plunk into the chamber and fall out if you point the rifle up. Sorry, an error occurred and we could not sign you up. 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). A cartridge, also called a round, refers to a design for a how a case (the brass shell that holds the gun powder) and a bullet all fit and function together. Why? With that basic understanding out of the way, here are the numbers I used to create the first graph: The bullet drops about 3 inches at 100 yards, 8 inches at 200 yards, 2 feet at 300 yards, 4.5 feet at 400 yards, and 9 feet at 500 yards. Some people question whether or not the 300 Blackout is effective for killing deer, and the simple answer is, yesabsolutely. In many ways, this bullet has similar characteristics as the 5.56its a light weight, extremely fast moving bullet with a lot of muzzle energy. The best hunting ammo will generally include all of the features above, but the particular balance of accuracy, speed, and lethality you want depends on what youre trying to kill as well as your personal preference. 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. Some would even say the 300 Blackout is too good at penetrating obstacles. PRESCRIPTION 4Bullet: 130-grain Barnes TTSXPowder/Charge: Accurate 1680, 18.8 grainsPrimer: Federal Small RifleCartridge Overall Length: 2.18 inchesMuzzle Velocity: 1,919 fps. It is absolutely true that supersonic .300 Blackout is every bit as effective as other intermediate rifle cartridges such as 5.56mm or 7.62x39mm. With a 16" barrel and mid length gas system it 'should' be able to cycle using subsonic ammo even without a can. This high velocity gives the bullet a muzzle energy of 1,358 ft/lbs, which is also about three times higher than most subsonic 220-grain 300 Blackout ammo and almost the same as supersonic 115-grain 300 Blackout ammo. More bullet energy on target = more potential killing power. This is particularly true at longer ranges, where bullets begin to drop faster and it becomes harder and harder to predict where they will land. 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. I pulled these numbers out of thin air, but this general principles hold true for all gun barrels. And other states like Montana, North Carolina, and Vermont dont care what the hell you shoot animals with. Obviously the results of firing a round in this manner would be catastrophic. The unknown issue many .300 BLK shooters are combating without even knowing it is their 5.56 NATO/.223 magazines will not reliable feed all grain weights and bullet profiles of the .300 BLK. PRESCRIPTION 1Bullet: 110-grain Sierra HPPowder/Charge: Hodgdon Lil'Gun, 20.0 grainsPrimer: Federal Small RifleCartridge Overall Length: 1.89 inchesMuzzle Velocity: 2,402 fps. P.S. It may not be a high probability, but the point isnt that you must be able to penetrate armor. . The cartridge, primarily intended for hunting, offers a greater case capacity and comes with a 1:12 twist (so you cant stabilize the heavies). Well talk more about how the 5.56 and 300 Blackout stack up against one another in a moment. As this bullet penetrates into someone the aluminum nose of the bullet is pushed back into the copper base. 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). This showcases the dual purpose of the round. 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. At any rate, Jones Whispers were proprietary. Do you care about your Second Amendment rights? And how does that affect real-world accuracy? . Theres one key difference between hunting ammo and home defense ammo. 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. The 300 Blackout shooter is getting 30-30 performance with about one-third the powder and slightly less recoil. A 300 Blackout bullet fired from a 10.5-inch barrel has almost the same muzzle energy as a 5.56 bullet fired from a 16-inch barrel.
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