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Dr. Bindi Naik-Mathuria, a pediatric trauma surgeon at Baylor College of Medicine, told Yahoo News that injuries from an AR-15 style rifle are “almost unsurvivable, essentially,” because of ...
It appears that this round can drastically improve the performance of any AR-15 weapon chambered to .223/5.56 mm. Superior accuracy, wounding capacity, stopping power and range have made this the preferred round of many special forces operators, and highly desirable as a replacement for the older, Belgian-designed 5.56×45mm SS109/M855 NATO round.
The damage caused by the 5.56 mm bullet was originally believed to be caused by "tumbling" due to the slow 1 turn in 14-inch (360 mm) rifling twist rate. [67] However, any pointed lead core bullet will "tumble" after penetration into flesh, because the center of gravity is towards the rear of the bullet.
[11] [12] Damage may include bleeding, bone fractures, organ damage, wound infection, and loss of the ability to move part of the body. [2] Damage depends on the part of the body hit, the path the bullet follows through (or into) the body, and the type and speed of the bullet. [12] In severe cases, although not uncommon, the injury is fatal.
Bellamy and Zajtchuck write, "The abdomen is one body region in which damage from indirect effects may be common." (p. 150) Injuries to the liver and bowel shown in Figures 4-42 and 4-43 are described, "The damage shown in these examples extends far beyond the tissue that is likely to direct contact with the projectile." (p. 150)
The selection of test backing is significant because in flexible armor, the body tissue of a wearer plays an integral part in absorbing the high energy impact of ballistic and stab events. However the human torso has a very complex mechanical behavior. Away from the rib cage and spine, the soft tissue behavior is soft and compliant. [35]
The XM214 was first developed for aircraft applications. Later General Electric developed it into a man-portable weapon system, known as the GE Six-Pak.The complete Six-Pak system weighed 85 pounds (38.5 kg) with 1,000 rounds of ammunition, comparable in weight to some heavy machine guns.
The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1]