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 300 Blackout just doesn't pack enough powder to require a long tube for full combustion. 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. Aero Precision M4E1 Complete Rifle. Why Your .300 BLK Won't Work - The Armory Life Frank Green at Bartlein barrels uses the example of High Power rifle competitors using stock Colt 1:7 rifles back in the day experiencing 4 MOA results with 55 grain loads, and sub MOA with the same rifle and shooter using the 69 SMK. Like airplanes, once in flight bullets have to overcome two main obstacles to reach their target: Air resistance is also referred to as drag. I will try some other loads and see if I can keep sub and still cycle. 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 . 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. A cartridge load for 7 to 11-inch barrels with slightly more gunpowder to increase the velocity out of short-barreled rifles. 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. 300 Black Out Pistol Cycling Problem Fixed - YouTube 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). 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 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. You can get terminal performance beyond the reach of currently offered factory ammo from .300 Blackout handloads. .300 AAC Blackout - Wikipedia Copyright 1996-2023 AR15.COM LLC. 300BLK sizing issues! Need help - Rifle/Shotgun - Forums 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. if you use bullets that are designed to expand while moving at subsonic speeds. . At 100 yards energy is still 450 foot-pounds, drift only an inch or so in 10 mph right angle breeze. 547 Share 33K views 6 years ago You don't need special 300 Blackout springs or buffers or bolt carrier groups to get your 300 Blackout to cycle. If youre spending money on competition or good instruction, then you generally dont want your accuracy to be distorted by low-quality ammo. 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. 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. certified instructor prior to handling any firearm and be sure to read your owners manual. Just for kicks, I also assembled subsonic loads with two heavyweight bullets. Group size was halved to a respectable measurement of around 2 inches. In the AAC MPW carbine, the 10-shot, 100-yard group measured 1.81 inches. The 300 Blackout has become one of the most popular rifle cartridges available. I would note that of those three things the Springfield Saint 300blk has only the first. The best way to understand bullet drop is to visualize it, which is easy if you use a ballistics calculator. The only downside of these cartridges is the cost$1.8 per roundwhich makes it expensive to practice with this ammo. 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. There are many different theories on what makes the best hunting ammo. A Magpul .300 BLK PMAG (left) and a 5.56 PMAG (right). If your rifle is like mine, there's a fine line on getting it to work. 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. 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. This is assuming that both of these bullets were fired through 16-inch barrels, though. While this is a valid concern, there are easy ways around it. 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. The team at Discreet Ballistics call this bullet their Machined Selous Expander, and they achieved this menacing effect through a few neat feats of engineering: The result is a bullet that reliably expands to over three times the width of the original bullet, creating a wound nearly an inch wide. You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. I chose two Berger VLD bullets, the first of which was the company's 190-grain Hunting version. With that out of the way, lets look at the bullet drop of the 300 Blackout. 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. The only problem I ran into while handloading the .300 Blackout was with bullet set-out when the cartridge was chambered. I have used multiple mags with no success. 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). Adam is a manager at The Guns And Gear Store in Waite Park, MN. by 20X11 Sun Dec 29, 2013 12:59 pm, Post I used load data from Hodgdon and Accurate, but my first attempt yielded supersonic velocities. 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. Theres one part of the AR-15 that doesnt always play nice with different kinds of ammo, though, and that is the magazines. Was I alone in my 300 BLK experience? I loaded an additional 10 rounds using the original data and fired them through a CVA Scout with a 16-inch barrel. 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. Supersonic 300 Blackout bullets weigh 110 grains, or twice as much as standard 5.56 bullets. 300BLK pistol. Failure to Eject. - TNGunOwners.com 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! Thats enough of a drop to seriously affect your accuracy when shooting at a target 100 yards away. Springfield Armory recommends you seek qualified and competent training from a .300 Blackout (BLK) vs. 5.56: What's Best For You? and itll shoot without any other modifications. This is less of a problem with mid-grade 300 Blackout ammo from reputable companies. 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. 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. This is where a dedicated .300 BLK magazine can be tremendously useful. It should work in AR-15 rifles and magazines, with only a change of the barrel required to make it operational. Thought a Beretta shotgun was out of your budget? 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. The best way I've found to solve this problem is to size brass without the expander ball in the die. 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. Wish someone told you this before? The chief advantage of 300 Blackout is its versatility. It can penetrate through more material (walls, trees, people . Itll reliably kill deer, hogs, and people within those ranges, too. 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. You see, just because all of the gunpowder in a cartridge is burned doesnt mean that increasing the barrel length doesnt offer any benefits. 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. With a magazine follower designed around the varying profiles of .300 BLK, a larger cut for rounds to exit the magazine, and feed lips that are equally engineered for the spectrum of bullet shapes, a dedicated .300 BLK magazine is truly the way to go. In other words, the drop of 5.56 bullets is about half as much at any given range as supersonic 300 Blackout bullets. This presents little problem if you do not already own a 5.56mm rifle, but it seems fair to wager that the majority of prospective .300 Blackout owners also own AR-15 type rifles chambered in 5.56mm. That person was Bill Wilson of Wilson Combat with his 7.62x40WT. You grab some friends, line up behind the car, put your hands on the bumper, and push as hard as you can. Testing was conducted at an elevation of 2,200 feet above sea level. 9 Best .300 Blackout Rifles (Buying Guide & FAQs) 2023 - Marine Approved Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. It may not be a high probability, but the point isnt that you must be able to penetrate armor. So, who is right? . It works well with supersonic ammo. 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. Obviously the results of firing a round in this manner would be catastrophic. 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.
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