While the 300 AAC Blackout has far more energy, the military’s primary statistical benchmark is a calculation known as “Hit Probability”. However, due to the increased weight of the projectile, it will provide more kinetic energy on target at 500 meters and will provide the same kinetic energy as the 5.56 M855 cartridge out to 700 meters. 300 Blackout will experience greater drop due to being fired at a slower velocity, thereby increasing the amount of holdover required to hit a target at the same distance. 300 Blackout 125 grain projectile at 2,220 FPS has: Using 500 meters as a benchmark, a NATO standard 5.56x45mm M855 projectile fired at 2,900 FPS will have 100 inches of drop, 41 inches of drift, and 291 ft.-lbs. The US Military rates the Max Effective Range of the M4 as 500 meters for a point target.
For example, going from 9mm (0.354") up to.224” projectile is much larger than the difference between. To provide some comparison, the difference in frontal area between a. Frontal Area is the total area of the circumference of the cylinder represented by the projectile facing the target.Īll things being equal (velocity, projectile expansion upon impact, etc.), projectiles with a larger frontal area crush/tear more tissue than those with a smaller frontal area, thereby increasing the capacity for wounding. 300 Blackout is the increased “Frontal Area” provided by the larger diameter. 300 Blackout primarily in Close Quarters Combat (CQB) and defensive situations.Ī major advantage of. In this article, we will discuss several distinct advantages to. This has made the round extremely popular with the civilian AR-15 market for target shooting, hunting, and defensive use.ĭespite reams of data, there is much debate regarding the ballistic advantages and disadvantages of 5.56x45mm as compared to. 223 Remington / 5.56mm NATO cartridge, it allows use of the same bolt carrier group and magazines as a standard M4/AR-15, making conversion as simple as swapping the barrel and muzzle device. 300 Blackout shares the same case head dimensions as the. 223 Remington/5.56mm brass case and then “necking” up the brass case to utilize a larger, heavier.
300 BLK was developed in response to requests from the military for a standardized cartridge with more energy on target and “punching” power than the standard 5.56x45mm NATO cartridge at close and medium ranges, while maintaining the standard 30 round magazine of the government issued M4/AR-15 rifles.Īdvanced Armament was able to achieve this by shortening a. 300 BLK, 300 Blackout, and 7.62 x 35mm) cartridge was developed by Advanced Armament Corporation and submitted for standardization to the Sporting Arms and Ammunition Manufacturer’s Institute (SAAMI) and approved in 2011.
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