One new winner* is announced every week! To learn more about the 7,62x40WT click here. cycle problems -300BlkTalk Obviously the results of firing a round in this manner would be catastrophic. This showcases the dual purpose of the round. To learn more about the 7,62x40WT click here. 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. To increase bullet energy on target, increase the barrel length or the bullets ballistics coefficient. Handloading the .300 AAC Blackout - An Official Journal Of The NRA 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. [ARCHIVED THREAD] - .300 Blackout pistol failure to feed issues. 300 Blackout Issue PLEASE HELP! - AR15.COM What about supersonic .300 Blackout, you say? Some would even say the 300 Blackout is too good at penetrating obstacles. The advantage of 300 Blackout is if the shooter wants an AR-pattern rifle or pistol that is easily suppressed, they can use a common magazine and typically only need to swap an upper receiver. You can find brands that make better ammo for certain applications, but its hard to match both the quality, quantity, and value of Hornady ammo. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. It wasnt the precision love fest I envisioned. I just built a .300 blackout pistol and took it to the range for the very first time today and had some failure to feed issues. In case you arent familiar with the term, home defense refers to the practice of defending yourself against bad guys who break into your house. Surf around on Internet forums, and youll often see people saying they would never use a 300 Blackout for home defense because it will overpenetrate. Short Barrel 338 Lapua Magnum Load Development Results, 300 BLK load development: 125, 135, 175 and 220 SMK with H110 and IMR 4227, Accuracy testing a 16 carbine: Daniel Defense Hammer Forged Barrel, Refreshing a poorly machined Remington 700 action, 223 Remington/5.56 NATO, velocity versus barrel length: A man, his chop box and his friends rifle, Replacing a plastic recoil pad on a shotgun, USMC M40A5 Build- Part 3: Receiver Truing, Fortune Favors The Brave.Even When Outnumbered, Customizing the 1911: countersink and flush cut slide stop pin, 6 Creedmoor barrel length versus muzzle velocity (31 to 17 inches). For example, if you level your rifle at a target 100 yards away and fire, and the bullet hits 3 inches below where you aimed, then there were 3 inches of bullet drop. Re: 300 blackout cycling issue???? It appears woefully underpowered, yet, thanks to the higher B.C bullets it shoots, it outperforms our beloved old 30-30. Why there are More Supply Chain Problem in our Future In the gel, it acted like a high-velocity pistol bullet, which it isSpeer designed it for the .30 Carbine cartridge. The 300 BLK has such a small case you are effectively loading pistol powder into a rifle cartridge. 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. by 20X11 Sun Dec 29, 2013 10:50 am, Post It cycles fine with supersonic ammo. This load should also work well in a self-defense role where over-penetration is a concern. 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. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! Even worse is when a combine that harvests grain needs a part only made in China. In most cases this means nothing. Some bullets are designed to be fired through longer barrels, and some are designed to be fired through shorter barrels. P.S. 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. Best results are found with bullets between 110 and 125 grains. (Have any suggestions for ammo that should be on this list? Most bullets move faster than this speed, which is responsible for the loud crack a bullet makes as it travels through the air. 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. It should work reliably when using low-powered (subsonic) or high-powered (supersonic) ammo with or without a suppressor. Next, I tested terminal performance by firing each load into blocks of 10-percent ordnance gelatin. ***What AR-10 Buffer/Spring are you running with the Magpul UBR? Best 300 Blackout Magazines - Review And Buyer's Guide - Project Gunner Well, firstly, the aluminum nose of this bullet allows it to penetrate relatively soft obstacles like drywall, glass, and plywood without falling apart like 5.56 would. A metal grip frame, slide ports and a red dot cut are just some of the new features. 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. Although more difficult, you can even adjust for the 2 feet of drop at 300 yards. 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. You can easily adjust for the 8 inches of drop at 200 yards by aiming slightly above the target. 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). Q: Can you provide your insight regarding the 300 blackout cartridge and its use on boar & various species of deer? Odd, yes, but it has a lot of benefits for hunters and shooters alike. Had problems with cycling both. Potentially both. bullets hang onto it while deflecting minimally in the wind. When the tip came off, the bullet slightly opened up and began tumbling, which caused the core to separate from the jacket. Supersonic 300 Blackout bullets weigh 110 grains, or twice as much as standard 5.56 bullets. 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. 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. Increase the amount of energy the bullet retains. If youre using subsonic bullets, then cut that range in half. Not only does subsonic ammunition perform far more poorly in tissue, it also gives up one of the other primary advantages of a rifle: the ability to penetrate soft body armor. 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. . Keep your gear handy when it's not on your belt. 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. 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. If you like Rifleshooter.com, please follow us on Facebook. Penetration was deep due to lack of expansion, but the wound cavity was narrow. Lehigh Defense 300 AAC Blackout 78-grain High Velocity Close Quarters. The barrel on the Savage is just over 16 inches, as are all the rifles in this test. 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. If you do decide to join the dark side and try 300 Blackout, make sure you come back here and let me know what you think of it! Revisiting the Suppressed .300 Blackout for Survival. Instead, it was designed for combat, which typically takes place within around 300 yards (and the vast majority of that combat occurs within about 100 yards). Although .30 Rem. With a 16" barrel and mid length gas system it 'should' be able to cycle using subsonic ammo even without a can. In addition, my testing revealed it is relatively easy to assemble .300 AAC Blackout handloadsboth subsonic and supersonicthat are more accurate than factory loads. 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. The upper functioned flawlessly and accuracy was about 2 MOA, which it turns out, isnt too shabby for a BLK, but was still less than I had envisioned, especially considering the 7.62x50WT and 30 AR rifles I was testing around the same time shot about 1 MOA (read my 30 AR review here). Thats not a bad tradeoff when you consider the terminal ballistics of 300 Blackout vs 5.56 (which youll learn next). .300 Blackout pistol failure to feed issues - AR15.COM . Like the same mid-length gas that's on a 5.56/223 rifle? PRESCRIPTION 3Bullet: 125-grain Nosler AccuBondPowder/Charge: Accurate 5744, 20.8 grains (compressed)Primer: Federal Small RifleCartridge Overall Length: 2.13 inchesMuzzle Velocity: 2,203 fps. In other words, if you were to shoot a 5.56 through a 9-inch barrel, it would have significantly less muzzle energy than the 300 Blackout. Why Your .300 BLK Won't Work - The Armory Life YesI read thatbut what is the buffer weight and spring length and number of coils? 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). There was, however, a concern: The load would only feed about 50 percent of the time. 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. It fires a .30-caliber, 110 to 220-grain bullet and reliably works with and without a suppressor. So, why not just use hollow point 5.56 ammo? Oops, there's been an error. An adjustment in overall length might correct this problem. Early on, the claimed goal was to have ammunition prices on par with the inexpensive .223 Rem. One ftlbf is equal to about 1.355 J, and its the amount of energy it takes to raise one pound by one foot. 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. 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. The RCBS Primer Pocket Swaging tool will correct this, but taking care of the issue is a time-consuming affair. That person was Bill Wilson of Wilson Combat with his 7.62x40WT. Is the 300 Blackout just a new knickknack for tearing up targets at the range, or is it the better mousetrap weve been promised? All Rights Reserved. It will eject the spent brass, but not pickup a new round. If so, that's your problem. 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. Youll also see bullet widths measured in millimeters (mm), and the width of the 300 Blackout bullet works out to 7.62 mm. . Summary: When it comes to rifles with barrels less than 16-inches long, though, the 300 Blackout is more lethal than 5.56. Ruger Ranch American 300 BLK - Negative Things to Know Before Buying The 300 Blackout is a rifle cartridge thats more powerful than the 5.56 when fired out of a barrel thats less than 16 inches long. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. The nose of the bullet is made of solid aluminum and the base is made of solid copper. The car begins to move, and at this point you could stop pushing and let it coast forward a few feet. The gas tube is pinned. While neither are well suited for long range shooting, they are more than adequate at close to medium range. 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. I recommend first to try slower powder, I had the exact same problems with mine. Should I take out 2 weights or clip his spring a couple coils? 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. 300 blackout optimized with pistol length gas systems. 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. As a result, you generally want your home defense ammo to . . 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. Thats not an issue with 300 Blackout ammo, though. We cannot show the process itself of resolving the problem due to YouTube TOS. Posted: 2/5/2017 7:33:39 PM EST [#13] Quote History Heres a fun example of this principle in action: Thats a .50 BMG punching through three cinder blocks, and the reason its able to pull this off is because its an extremely heavy bullet moving very fast. 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. A grain is a unit of measurement used in the firearms industry for measuring bullet weights, equivalent to about 1/15th of a gram. Theyre going to be hiding behind rocks, walls, trees, and other obstacles, and being able to punch through this cover and plug them before they plug you is a major advantage. For example, you cant increase the weight of a 5.56 bullet to more than about 70-grains before it starts causing problems. Snoop around online and youll also find plenty of examples of hunters killing 500+ pound pigs and 200+ pound deer and black bears with 300 Blackout rifles. There's a narrow band of powders that work well with the .300 Blackout. You wont find a cartridge that does it all better than the 300 Blackout. The only time when increasing the barrel of a 300 Blackout beyond about 9 inches or so would offer a significant advantage is when youre taking shots longer than ~300 or so yards. With the 210-grain Berger VLD Target handload, four of the 10 rounds were above the speed of sound even after reducing the powder charge. Scientifically, logically, and anecdotally, its a winner, and Im going to show you why in this article. Remove the gas block and look for off-center carbon ring where the block meets the hole in the barrel. The reason the cases of the 5.56 and 300 Blackout are so similar is because both cartridges need to fit in the same gun. by rjacobs Sun Dec 29, 2013 12:09 pm, Post Its literally how much bang you get for your buck. Ultimate Guide to 300 Blackout | Ballistics, Uses, & More! At 500 yards, the bullet has dropped almost 9 feet, making it more or less impossible to hit your target. PRESCRIPTION 5Bullet: 130-grain Hornady SPPowder/Charge: Hodgdon Lil'Gun, 19.0 grainsPrimer: Federal Small RifleCartridge Overall Length: 2.02 inchesMuzzle Velocity: 2,259 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. By the time both bullets have traveled about 500 yards, theyre moving at almost the same speed. The muzzle energy, which is the energy of a bullet just after it leaves the barrel of a gun. .300 AAC Blackout - Wikipedia Unfortunately, small variations in the shape of the cartridge can cause ammo to snag, jam, or feed slowly. If you were to keep pushing on the car, thoughnot necessarily pushing any harder but pushing on the car for longerthen it would gather even more speed and move even further. Like the 125-grain Nosler AccuBond, this bullet delivered sub-par accuracy in the AAC carbine. 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. I pulled these numbers out of thin air, but this general principles hold true for all gun barrels. When was the last time you saw 30-30 ammo offered with anything but 150-, 160-, or 170-grain bullets? Than 5.56 Ammo, 300 Blackout Ammo Can Be Used in AR-15s with Minimal Modification. . The bullet expanded the widest of any I tested and pushed to 15 inches, where it exited the bottom of the block. when loaded with fairly standard 220gr subsonic rounds, that guide presses into the projectile of the subs inside the 5.56 magazine. First time shooting the gun, loaded up a 30 round magazine and I fire the first shot with no issues. Not in the sense that leaving a bottle of lotion on the coffee table and playing Goodbye Horses is a terrible way to impress a date, but it also isnt what most of the breathless fanbois are fainting over, either. 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). It penetrated more than 32 inches in gelatin and showed no expansion. Click the Go To Forum Thread link below to jump in and discuss this article and much more! The M4 profile is light under the handguard and .750" at the gas block with the M203 cut. 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. That means if you aim at someones chest at that range, the bullet is most likely going to slump into the ground at their toes. .300 AAC Blackout I Don't Get It - AllOutdoor.com The .300 Blackout started out as a military round. Terminal performance was excellent. It was first concocted by J.D. The leader in the shooting industry for modern sporting rifle magazines is Magpul, and their .300 BLK magazines have an optimized internal geometry that accommodates a wide variety of .300 BLK cartridges. In laymans terms, that is exactly what we are looking for a magazine made for the varying bullet types, grain weights and shapes that come with the .300 BLK cartridge. Some of the add-ons on this site are powered by, http://micromoa.com/300-blk-port-size-testing/, http://www.300blktalk.com/forum/viewtopic.php?t=86656. And all you have to do to shoot 300 Blackout is buy a 300 Blackout upper, slap it on your existing AR-15, load up your regular AR-15 magazines, and start shooting. by jFlacoS Sun Dec 29, 2013 12:50 pm, Post 300 Blackout: Shooting with Subsonic Ammo - Silencer Central But what does this mean for boar and deer killing performance? That is probably the most succinct way to sum up what .300 Blackout is. 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. When you try to shoot further than that, though, youre better off using a different cartridge. And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. 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. While this is a valid concern, there are easy ways around it. 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. I subjected these .300 Blackout handloads to a testing protocol similar to the one I used to evaluate the factory ammo. The recovered weight (RW) is the weight in grains of the largest portion of the bullet. 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. I used load data from Hodgdon and Accurate, but my first attempt yielded supersonic velocities. 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 . 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.
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