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. And they do this by burning about 10 to 12 grains less powder than the 30-30. 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. than 5.56 ammo. Summary: The 300 Blackout has significantly more muzzle energy than the 5.56, and this is particularly true when youre shooting these cartridges through shorter-than-average barrels. Both average 1000-1050 fps. The barrel is chambered in 300 AAC Blackout with a 1 in 8" twist. 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. 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. 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. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. They do not detail the comprehensive training, procedures, techniques and safety precautions that are absolutely necessary to properly carry on similar activity. Spending less than this will likely give you ammo that isnt accurate enough, and spending more than that is likely overkill for competition and classes. Thanks for the help. Some people even go so far as to say that anything longer than a 9-inch barrel for a 300 Blackout is a complete waste of space and weight. As an added bonus, its all-copper construction means you dont have to worry about picking slivers of lead out of your steaks. To eliminate this sonic boom, you need to use bullets that travel below the speed of sound, or less than 1,100 fps. 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. 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. That is probably the most succinct way to sum up what .300 Blackout is. . At the time, the U.S. military was embroiled in multiple large scale urban battles across Iraq, and many special forces units had started using short-barreled rifles to make it easier to maneuver when fighting house-to-house. The easiest solution is to use a special bullet thats designed not to overpenetrate such as a lightweight hollow point or frangible bullet. The RCBS Primer Pocket Swaging tool will correct this, but taking care of the issue is a time-consuming affair. They came up with a solution for that problem, too. 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. 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. And other states like Montana, North Carolina, and Vermont dont care what the hell you shoot animals with. Instead, you want the bullet to enter the target, transfer all of its energy and lethal force to the person, and stop inside them without flying out the other side. It wasnt the precision love fest I envisioned. 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. The 300 BLK has such a small case you are effectively loading pistol powder into a rifle cartridge. That's it. 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. The military was interested in this kind of performance for clandestine operations, I assume. 300 blackout optimized with pistol length gas systems. Never miss a post! For comparisons sake, lets look at the trajectory of a standard 55-grain 5.56 bullet fired under the same conditions. None of the metal fragments penetrated more than 16 inches, which is exactly what you want with home defense ammo. Product prices mentioned in articles and videos are current as of the date of publication. This had a horrible effect on accuracy. Would you mind doing me a favor? If youre using subsonic bullets, then cut that range in half. An adjustment in overall length might correct this problem. Blackout is a product name of the company who invented the cartridgeAdvanced Armament Corporation (AAC)who designed it at the behest of the military with three main goals in mind: The primary goal was to create a cartridge for special forces units that would be as quiet as suppressed 9mm ammo fired from an MP5SD, but with greater lethality than 9mm and 5.56 ammo. Its more powerful than 5.56 ammo when shooting subsonic (quiet) bullets. With. I was shocked. 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 is one of the most powerful, versatile, and lethal kinds of ammo you can fire out of a short-barreled AR-15, and with subsonic ammo, its extraordinarily quiet when fired through a rifle with a suppressor. The .300 BLK has easily been the most successful new caliber in the last 20 years. Some bullets require a certain barrel length to reach maximum energy, and using shorter barrels makes them far less effective. He bought one of these https://www.americantactical.us/6334/detail.html and it won't cycle the 208grn hornady amax subsonics without suppressor. The 5.56 bullet disintegrated after penetrating only a few boards, whereas the 300 Blackout stayed intact as it sliced through every single board in this test. All of these companies have a reputation for making good but inexpensive ammo thats ideal for practice, plinking, and recreational destruction. Let's consider the Blackout with 150-grain bullets at 2,100 fps. 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. Jones chambered T/C Contender handguns for these rounds and called them Whispers because he was keeping muzzle velocities below the speed of sound. Theres one key difference between hunting ammo and home defense ammo. The views August 17, 2016 by smustian Sun Dec 29, 2013 1:08 pm, Powered by phpBB Forum Software phpBB Limited. . I have tried a lighter spring and heavy lubrication with no success. 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. Posted: 2/5/2017 7:33:39 PM EST [#13] Quote History . I'm having a similar issue with a friends blackout pistol. The VLD Hunting bullet is designed to expand, but not at subsonic velocities. You see, just because all of the gunpowder in a cartridge is burned doesnt mean that increasing the barrel length doesnt offer any benefits. +1 on trying a standard carbine buffer. The barrel is 16" with a mid length. Like the same mid-length gas that's on a 5.56/223 rifle? The only prep work I did before loading was sizing the cases, tumbling them and chamfering their necks. I used load data from Hodgdon and Accurate, but my first attempt yielded supersonic velocities. I immediately assumed the same bullet set-out problem was to blame, so I also tested it in the CVA Scout. Sorry, an error occurred and we could not sign you up. It cycles fine with supersonic ammo. without spending more than you need to. 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. Just for funsies and completeness, heres a table with all of the data from the above charts: 300 Blackout vs. 5.56 Bullet Drop (In Inches). Because velocity is critical to performance, this load should be a great match for an SBR. As deer ammo goes, that's slow, but only 200 fps slower than the old 30-30. P.S. 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. Specifically, you want to know how much energy a bullet has when it hits the target, which is referred to as a bullets energy on target. Lining up and Picking Sides - A WW3 Story. 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. 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. 223 Ackley Improved (223AI) loads and review: A better 223? This matters because in most home defense or combat scenarios, you arent going to have a good shot at your enemy. The 300 Blackout provides an elegant solution. 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's a fun, lower velocity round that can really pack a punch. You can expect to pay anywhere from $1.5 to $3 per round for high-quality subsonic 300 Blackout hollow points. 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 And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. ***Fixed! You can easily adjust for the 8 inches of drop at 200 yards by aiming slightly above the target. I pulled these numbers out of thin air, but this general principles hold true for all gun barrels. 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. This is the perfect balance of barrel length for high muzzle energies, they say, without making the gun front-heavy and awkward to shoot. By the end, youll know everything you need to know about 300 Blackout ammo, whether you should try it, and what you can expect if you do. With a bullet that isnt over stabilized, factors that can be detrimental to accuracy, such as a concentricity issue, can be mitigated. Theres only one problem with that cartridge for home defense, though: its subsonic. 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. 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. Thought a Beretta shotgun was out of your budget? 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. 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. views and opinions of Springfield Armory. Click the Go To Forum Thread link below to jump in and discuss this article and much more! 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).
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