Similarly, bullet performance at distance is less than ideal with the 300 Blackout due to low impact velocities. Richard Mannīoth cartridge can deliver good precision, but once the range exceeds 200 yards, hits with the 5.56 become easier. 300 Blackout vs 556: Hunting Both cartridges can be effective for hunting inside 150 yards. If you’re going to shoot a lot-whether you use factory ammunition or load your own-you can shoot the 5.56 NATO for about half the cost of the 300 Blackout. Another important consideration is volume shooting. If your recreational or competitive shooting is limited to around 150 yards, both cartridges will perform equally well, but the 300 Blackout is poorly suited to any distance much beyond 200 yards. You don’t have to kill paper targets or steel generally a hit is all that’s required. 300 Blackout vs 556: Recreational/Competition Shooting So, since both cartridges are commonly fired from the same AR-15 style rifle, to accurately compare how they stack up, you really need to look at intended use. If you’re shooting paper, energy doesn’t matter, and if you’re shooting inside 100 yards, trajectory matters little as well. You also need to consider the gun, distance, target, and application. Richard Mannīut ballistics alone are not enough for a meaningful comparison. This chart compares the ballistics of the 556 and 300 Blackout, including bullet drop with a 100-yard zero. Regardless the target, beyond 200 yards, the 300 Blackout simply cannot compete with the 5.56 NATO. On the other hand, at 300 yards the 5.56 NATO’s 70-grain load will impact with 657 foot-pounds with a velocity of more than 2000 fps, guaranteeing bullet upset. At that velocity, bullet upset is questionable. For example, at 300 yards, the 135-grain 300 Blackout load only has 546 foot-pounds of kinetic energy and is traveling at a meager 1349 fps. Ballistically, these cartridges are not in the same category the 5.56 NATO shoots much flatter and at distance retains more velocity and energy. The 5.56 NATO pushes lighter bullets at faster velocities, while the 300 Blackout launches heavier bullets at moderate and subsonic velocities. Due to the 300 Blackout’s compatibility with subsonic ammunition and the subsonic loads offered for it, it’s largely responsible the current interest in suppressed shooting. Though touted as the equivalent of the 30-30 Winchester, it’s substantially less powerful it’s much closer in performance to the 7.62x39mm Russian cartridge. There are lots of factory 300 Blackout loads to choose from, with bullets ranging in weight from 110 grains up to 260 grains. The 300 Blackout cartridge was introduced in late 2010 by Advanced Armament Corporation (AAC) and Remington and is really just a SAAMI-approved version of the 300 Whisper wildcat cartridge. (For more on 233 vs 556 click here.) The 300 AAC Blackout The main appeal of the 300 Blackout is its ability to effectively fire subsonic and supersonic loads. With comparable loads, you can do anything with a 5.56 NATO that you can do with a 223 Remington, and you can safely shoot 223 Remington ammunition in a 5.56 NATO rifle. There’s a decent selection of factory recreational ammunition for the 556, but self-defense and hunting ammunition options are a bit limited. The cartridge has been around since about 1979, and due to the availability of military surplus ammunition, it has become a common chambering in the AR-15. The 5.56 NATO is a higher pressure military derivative of the 223 Remington. The 5.56x45mm NATO The 5.56 NATO cartridge is almost identical in performance to the 223 Rem. As is often the case in these cartridge comparisons, this one is not so much about which cartridge is the better, but which cartridge is most properly suited to you and what you want to do with it. So to help, let’s take a close look at the history of the 300 Blackout and the 5.56 NATO, their ballistics, practical application, and their suitability for suppressed fire. Without all the facts, it’s hard to make an informed decision. The 300 Blackout and 5.56x45mm NATO are two of the most popular cartridges commonly chambered in AR-15 rifles, which means if you are looking to buy a new AR, then you may also be considering 300 Blackout vs 556. We may earn revenue from the products available on this page and participate in affiliate programs.
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