problems with 300 blackout

Shooters who join the .300 BLK bandwagon may attribute issues they experience in failure-to-feed (FTF) or failure-to-eject (FTE) to their rifle when in fact, they should take a more discerning look at the magazines they are using. 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 cartridge, primarily intended for hunting, offers a greater case capacity and comes with a 1:12 twist (so you cant stabilize the heavies). 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. 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. 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!!! The easiest solution is to use a special bullet thats designed not to overpenetrate such as a lightweight hollow point or frangible bullet. Whats the Ideal Barrel Length for a 300 Blackout Rifle? All else being equal, bigger, heavier bullets are usually more effective at penetrating targets than lighter, smaller ones. Revisiting the Suppressed .300 Blackout for Survival. Testing was conducted at an elevation of 2,200 feet above sea level. The bullets also behaved very differently after entering the wood. Maximum velocity deviation dropped from 139 fps to 35 fps, and the group shrank to 2.96 inches. Drag also affects the bullets trajectory, which can have a significant impact on accuracy even at close ranges. 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. As deer ammo goes, that's slow, but only 200 fps slower than the old 30-30. In the case of 300 Blackout, you either . In fact, it was faster than any factory load I tested. 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. by jFlacoS Sun Dec 29, 2013 11:13 am, Post than 5.56 ammo. In many ways, the 300 BLK in design terms is the opposite of a modern match cartridge like the 6mm BR or 6.547 Lapua. I also learned in my research that virtually all 300 AAC Blackout pistol builds utilize: a pistol length gas system, a lighter, carbine weight bolt carrier group (BCG), and a lighter, carbine weighted buffer in order to cycle sub-sonic reliably. 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. Its more powerful than 5.56 ammo when shooting subsonic (quiet) bullets. 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. . Was I alone in my 300 BLK experience? The idea behind the .300 Blackout was to try to fix all these problems while retaining the format. We dive deep into the best of the .300 Blackout. Any use of this content without express written consent is prohibited. I dont have comments enabled on this site, to discuss this post, feel free to comment on it there. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. What do I need to do to get it to cycle for him? We were even close for a . With. The first thing that strikes you about this cartridge is the shiny, silver tip of the bullet. 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. 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. . Thats why I recommend Lehigh Defense 300 AAC Blackout 78-grain High Velocity Close Quarters cartridge. You can easily adjust for the 8 inches of drop at 200 yards by aiming slightly above the target. 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. Click here to find out. If youve spent any time poking around online, youve likely heard its . Even if all of the gunpowder has been burned, a longer barrel keeps the gasses contained and pushing on the bullet for longer, helping it reach higher velocities. Odd, yes, but it has a lot of benefits for hunters and shooters alike. Perhaps one of the most sobering problems with .300 Blackout is the ability to chamber in a .223 or 5.56mm barrel. Let me know in the comments section below! . The recovered weight (RW) is the weight in grains of the largest portion of the bullet. by 20X11 Sun Dec 29, 2013 11:19 am, Post For example, lets say increasing a 300 Blackout barrel from 4 inches to 8 inches results in a 50% increase in muzzle energy. 300 Blackout AAC. 4500$, Caliber: While the bullet is obviously much larger, the parent case is 5.56mm so it will fit into the chamber. 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. Remove the gas block and look for off-center carbon ring where the block meets the hole in the barrel. I like my 300 BLK, but see it for what it is. . As this bullet penetrates into someone the aluminum nose of the bullet is pushed back into the copper base. Crooks are wearing body armor more frequently when committing home invasions and soft armor can be found in many pawn shops or online for less than you might think. External ballistics is the study of how a bullet behaves as it flies to the target. This is certainly the prominent selling point of the cartridge, but one of the areas the 300 BLK will sometimes lack is accuracy. The muzzle energy, which is the energy of a bullet just after it leaves the barrel of a gun. 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. Another reason as to why a dedicated .300 BLK magazine would be beneficial is the markings on them. Jones of SSK Industries in the 1990s as part of his Whisper series of cartridges based on the 221 Fireball. PROS: Straightforward design; 7" barrel twist; Great compact rifle handling character. Before we go any further, its worth spending just a moment to get acquainted with the 5.56, as well be comparing it to the 300 Blackout throughout this article. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. There are two things you can do to increase a bullets energy on target: In general, the best way to increase the muzzle energy of a bullet is to fire it through a longer barrel. Spikes likes to use "HeavY" buffers in their kits for .223, 300 BlkOut Issues: Failure to Feed, Double Feeds, Stuck Ammo, http://www.youtube.com/watch?v=iVzCQ0LL2A8, Re: 300 BlkOut Issues: Failure to Feed, Double Feeds, Stuck. Although .30 Rem. For comparisons sake, lets look at the trajectory of a standard 55-grain 5.56 bullet fired under the same conditions. Instead of being made of solid lead and copper, like most bullets, frangible bullets are made of a mixture of compressed metal powders. Obviously the results of firing a round in this manner would be catastrophic. If so, that's your problem. I will try some other loads and see if I can keep sub and still cycle. . The .300 Blackout has had a few years to grow now. . This showcases the dual purpose of the round. I tried this for several rounds with the same thing each time. Editors Note: Please be sure to check out The Armory Life Forum, where you can comment about our daily articles, as well as just talk guns and gear. This table shows the velocity of the three bullets weve discussed so far at six different ranges. 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. Next, I tested terminal performance by firing each load into blocks of 10-percent ordnance gelatin. . What barrel and gas tube length? Jones. In case you arent familiar with the term, plinking refers to more or less randomly shooting at stuff for fun, in a safe manner. At 100 yards energy is still 450 foot-pounds, drift only an inch or so in 10 mph right angle breeze. Using Fiocchi .300 blackout 220 grain subsonic ammunition. (Just make sure you dont accidentally shoot 300 Blackout ammo through your 5.56 upper, or this happens.). Youll often hear people say that the ideal barrel for shooting 300 Blackout is 8 or 9 inches. Specifications: Length: 3.8" Width: 2.1" Height: 2.5" Weight: 9.0 oz Water Resistant: Submersible to 10 ft. Mount: 1" Weaver or MIL-STD-1913 rail Power Source: One 123 lithium battery As a result, you generally want your home defense ammo to . 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). 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. So, instead of continuing to beat this horse, lets look at how the 300 Blackout compares to the 5.56 in terms of muzzle energy. Its literally how much bang you get for your buck. None of the 210-grain VLD handloads cycled the carbine's action. Let's consider the Blackout with 150-grain bullets at 2,100 fps. These metal shards fly off in multiple directions, causing far more damage than even a well-designed hollow point. It will eject the spent brass, but not pickup a new round. Did you say 16" barrel with a midlength gas system? It may not be a high probability, but the point isnt that you must be able to penetrate armor. 10.5g it functions but doesn't keep the bolt open. certified instructor prior to handling any firearm and be sure to read your owners manual. Its also moving considerably slower from the get-go, though, and experiences more bullet drop as a result. Imagine that your cars engine has died and you need to push it down the road. 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. Ive gotten quite a few emails from shooters with experiences mirroring mine. Their higher B.C. Not sure how to make sure the gas port is properly aligned. 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. The gas tube is pinned. The 300 Blackout is a rifle cartridge thats more powerful than 5.56/.223 (AR-15 ammo) when fired out of a barrel thats less than 16 inches long and works reliably with both super- and subsonic ammo. Another good example of this principle is that of the Glock 17 versus the Glock 17L. 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. It appears woefully underpowered, yet, thanks to the higher B.C bullets it shoots, it outperforms our beloved old 30-30. On the plus side, though, it can also hold a heavier, wider bullet than the 5.56 and still work in an AR-15. The rifle, as pictured above, includes the following parts fromBrownells: It took 26 different loads to get it end up with both a super and subsonic load around a MOA. I chose two Berger VLD bullets, the first of which was the company's 190-grain Hunting version. That might seem like a lot, but remember this is specialized hunting ammo. Some bullets are designed to be fired through longer barrels, and some are designed to be fired through shorter barrels. In addition, my testing revealed it is relatively easy to assemble .300 AAC Blackout handloadsboth subsonic and supersonicthat are more accurate than factory loads. But that momentum is just as effective for the hog hunter. The data has not otherwise been tested or verified by the NRA. Often theyll ask something like, Ive been shooting and reloading for years, no matter what I try, I cant get the gun to shoot better than 2 MOA, with an occasional 1 MOA group, why is this? Second, theres the fact that this bullet causes a lot more damage than a hollow point 5.56. At that distance, the 300 Blackout has 2 feet of bullet drop versus 1 foot for the 5.56. 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. You have to step up to the true heavyweights to get below the speed of sound. One new winner* is announced every week! Thanks to its unique design, though, it will still fall apart and not overpenetrate if it hits a tougher obstacle like a thick wooden wall, a car, or a tree. The 300 Blackout was designed to be used in AR-15s, with one simple change: As long as you change the barrel of your AR-15, which can be done by popping out two pins and putting on a new upper receiver, you can shoot 300 Blackout ammo out of your AR-15. This is important, because the distance a bullet has to travel before hitting its target can drastically change how it behaves in flight and after entering the target. Terminal ballistics is the study of how the bullet behaves after it hits the target. . I used an Advanced Armament Corporation (AAC) MPW carbine with a 16-inch barrel as the test rifle. It should work in AR-15 rifles and magazines, with only a change of the barrel required to make it operational. Why? He wants to be able to run subs while he waits on his can. After speaking with Nosler, I think we found the cause. If youre using subsonic bullets, then cut that range in half. 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.

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