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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 ArmaLite AR100 is a 5.56×45mm NATO caliber short-stroke piston gas-operated, 5.56×45mm NATO assault rifle fed from 30- round and 100-round drum magazines that eject from the magazine insert when empty and are discarded during a firefight.
The rifle itself is offered in two variants: the S-5.56 A1 with a 19.9-inch barrel and 1:12 pitch rifling (1 turn in 305 mm), optimized for the use of the M193 Ball cartridge; and the S-5.56 A3 with a 20-inch barrel and a 1:7 pitch rifling (1 turn in 177, 8 mm), optimized for the use of the SS109 cartridge. [216]
Secondly, when bullets fail to expand as expected, such as an impact on game 50 or 100 yards beyond what the ammunition is designed for, a bullet with a wide enough flat point will never "pencil through" with minimal disruption in the absence of tumbling. A properly proportioned flat pointed bullet can most assuredly leave a hole of sufficient ...
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 minimum proof and performance requirements for small arms ammunition of NATO calibres are covered in STANAGs as follows: [7]. 5.56 mm. STANAG 4172 and NATO Manual of Proof and Inspection AC/225 (LG/3-SG/1) D/8.
Subdued tracers burn at full brightness after a hundred or more yards to avoid giving away the gunner's position. Dim tracers burn very dimly but are clearly visible through night-vision equipment. The M196 tracer cartridge (54- grain bullet) 5.56×45mm NATO was developed for the original M16 rifle and is compatible with the M16A1 barrel also ...
Bill Wylde of Greenup, Illinois, compared the two cartridges and changed the chamber of the rifle's barrel to a specification he called the .223 Wylde chamber. The chamber is made with the external dimensions and leade angle found in the military 5.56×45mm NATO cartridge and the 0.2240 in (5.69 mm) freebore diameter found in the civilian SAAMI.