In theory, this means the bullet can pass through a solid object without rupturing but will rupture when it hits human flesh, or anything with a water content. Hydraulic pressure only builds up when the bullet hits a liquid, not a solid. This ring, or “hoop” as Lehigh Defense calls it, is designed to rupture at a predetermined depth when the hydraulic pressure has built up enough. The Controlled Chaos round has a small hollow ring at the top of the round. How the Controlled Chaos 300 Blackout Works The 300 AAC Blackout / Whisper 115gr High Velocity Controlled Chaos Copper Ammunition has the greatest wound cavity and size while consistently maintaining pentation depth between 12-18″. Even among hollow points within the same caliber, there can be large differences in impact size and penetration.Īfter many hours of research watching 15 different varieties of hollow-point 300 blk hit ballistic gel (used to simulate human tissue to gauge the effectiveness of a projectile), I concluded the best 300 blackout round for home defense was the Controlled Chaos by Lehigh Defense. They are terrible as a defensive round in most cases due to their high likelihood of overpenetration and lack of expansion leading to a smaller wound cavity.įor defensive rounds, in any caliber, hallow point varieties are almost always the best choice. The various ways in which bullets are made, even within the same caliber, create vastly different effects on the end target.įor example, Full Metal Jacket rounds (also called FMJ) are a great, cheaper choice for target practice and general shooting. While the 300 blackout is an excellent round for home defense, it does not mean all variations of the caliber are of equal value. So, a good home defense round in my opinion leaves the largest wound cavity and damage to the target while not over penetrating past the target. On the other hand, too little penetration often does not have a high impact and therefore leaves a small wound cavity making it much less incapacitating and more likely the attacker can continue. This is good for incapacitating a target, but a negative for anyone that may be behind your target. The high impact often leads to over-penetration. For maximum incapacitation, you need a round with high impact. These two dichotomies are often at odds with each other. Second, I need to limit my penetration as to not stray past my target and have the possibility of hitting a family member, or even a neighbor. First, I need to incapacitate my target’s ability to attack as quickly and efficiently as possible. For me personally, I have two main objectives that come to mind. When talking about home defense, everyone has slightly different views. To see whether 300 blackout is a good defensive round, we must first examine what the primary objectives are in a home defense round and compare that to the testing of various 300 blk variations to see if it is indeed a good round for home defense. “If it’s good enough for the special forces, it’s good enough for me” is the common thought process. When people hear something was created for use by the special forces, they automatically seem to conclude it must be the best of the best. How does the 300 blk work for home defense? This made the 300 Blackout very attractive to the special forces and the military in general due to the cost savings of refusing current equipment rather than replacing equipment. The only thing that needs to be changed is the barrel. It can use the same magazines, bolt, and upper/lower receiver. In addition, since the 300 blk uses a trimmed down 5.56 casing, it works in all military AR-style weapons chambered for 5.56. The larger weight and size slowed the projectile while maintaining adequate penetration and impact on the target. So, the 300 blackout was created by trimming down the casing of a standard 5.56 and replacing the bullet with a heavy and larger bullet. While subsonic 5.56 rounds exist, they left a less than desirable penetration and wound cavity than is required for effectively neutralizing a target. The special forces needed a subsonic round to suppress that impacts the target with more force than a subsonic 5.56. The 300 blk, also known as the 300 blackout and 300 AAC, was created for use in the special forces. I was skeptical of 300 blk at first, but after looking at the research below, I now use 300 blk in an AR-style pistol as my home defense weapon of choice. If you are unsure, keep reading to see my reasoning behind making such a claim. 223 equivalent making it an excellent round for large wound cavities without over-penetration. The heavyweight and size of the 300 blk allow it to have a greater impact at a lower velocity than a 5.56 or. Yes, the 300 Blackout is a good choice for home defense. 300 Blackout, also know as 300 blk or 300 AAC, was designed for use by the special forces, but, is it any good as a home defense round?
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