They also wanted a source for ammunition made to their specs.
#300 blackout subsonic ammo range full
bullets from an M4 platform while using normal bolts and magazines, and without losing the full 30-round capacity of standard magazines. A military customer wanted a way to be able to shoot. “We started development in 2009, but most of the work was done in 2010. Quote from Robert Silvers, director of research and development for AAC. īy keeping the M4/M16 in mind as the primary host during load development the designers were able to work up a host of cartridges that would satisfy not only the ballistic requirements set forth but also ensure mechanical reliability with the fewest changes to the weapon itself, with only a simple barrel change being necessary for a complete conversion. This was particularly noticeable when using subsonic ammunition in conjunction with a suppressor as short stroking and excessive fouling would occur similar to that which was seen in the earliest variants of the M16 in Vietnam. Many of these rounds required an excessively long overall cartridge length that would prohibit feeding in a STANAG magazine while using powder charges that were not compatible with the pressure requirements of the M4 carbine.
#300 blackout subsonic ammo range series
300 Whisper series addressed these issues but their widespread use in single shot handguns along with the lack of an industry standard cartridge dimension meant that a great number of the popular loads on both the supersonic and subsonic end of the spectrum were less than ideal in the AR pattern weapons. ģ00 AAC Blackout rounds shot from a suppressed M4 Carbine. Rounds such as the 6.8 SPC and 6.5 Grendel had similar part-interchangeability issues but did allow for the use of the standard M4/M16 30-round magazine albeit with a reduced capacity. In the case of the 7.62×39mm, its relatively severe case angle caused feeding issues unless specially modified AK-47 magazines were used, and even then results were less than outstanding Modified bolts were also needed owing to its larger case head diameter.
30 caliber rounds but encountered several problems. Colt Firearms and other arms makers had previously chambered AR-pattern rifles and carbines in various. Meeting these goals allowed the development team to negate many of the perceived drawbacks inherent to other large caliber cartridges when used in the M4. The 300 AAC Blackout was created by Advanced Armament Corporation in cooperation with Remington Defense, under the direction of AAC's Research and Development Director Robert Silvers and with the support of the company's founder, Kevin Brittingham. It can be seen as a copy of SAAMI-certified version of Jones' Wildcat. In an effort to satisfy this need, the 300 AAC Blackout was developed.
While 5.56×45mm NATO has enjoyed widespread acceptance in military circles, the nature of the missions encountered by some special operations groups often demand a round that provides better performance than that available in the high-energy standard velocity rounds and subsonic performance greater than standard 9mm (the ubiquitous pistol round also commonly used in many SMGs). Care should be taken not to use 300 BLK ammunition in a rifle chambered for. Its purpose is to achieve ballistics similar to the 7.62×39mm Soviet cartridge in an AR-15 while using standard AR-15 magazines at their normal capacity. ), also known as 7.62×35mm is a rifle cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine. 300 AAC Blackout (designated as the 300 BLK by the SAAMI and 300 ACC Blackout by the C.I.P. The 300 AAC Blackout plastic tipped, left, compared to 300 AAC BLACKOUT 125 gr match, 300 AAC BLACKOUT 220 gr subsonic, 5.56×45mm NATO, and 7.62×39mm.
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