I'm probably the last guy on earth to hear about this. A 30 cal from an AR-15 winning a match? Have I lost my mind. This is something you can buy?? http://www.gunpundit.com/ www.300aacblackout.com. Blackout for the Win October 28, 2011 | Author Murdoc 300 AAC Blackout Used in Win at MultiGun Nationals Staff Sargent Daniel Horner of the US Armys Marksmanship Unit used the new 300 AAC Blackout cartridge to win first overall in the Tactical Optics division of the 2011 USPSA MultiGun National Championship, held outside of Las Vegas, Nevada. 300 AAC Blackout was launched by Advanced Armament Corp. and Remington primarily for the military as a way to shoot 30 caliber bullets from the M4/AR15 platform while using standard magazines, but is expected to see a lot of use for hunting, plinking, and home defense as well. The concept of putting a 30-caliber bullet in a shortened 223 case has been done before, but not as an industry-wide standard that anyone can make products for, royalty-free. More below: SAAMI, the industry standards organization, adopted 300 BLK earlier this year, and it now has broad industry support- with over 60 companies making products for it. Remington is leading the pack with the most types and highest volume of ammo available 125 grain open-tip match with a custom Sierra bullet, 220 grain subsonic, and 125 grain AccuTip for hunting, law enforcement, and self-defense. While this is one of the lowest-cost cartridges to reload for Remington and AAC recognized that most people are not reloaders so UMC ammo is planned to be out soon with a price of just $12.99 MSRP per box substantially less than other cartridges that are a power upgrade from 223. And the use of the cartridge to win the Nationals while qualifying for Major Power Factor leaves no doubt about the potential for accuracy and the capability of some major punch. Robert Silvers, AACs Director of Research and Development and project lead for the platform, explained People want to hunt with their AR, and 223 may not be legal in their state or they just may not like varmint-sized bullets now there is a way to shoot 30 caliber from your AR while still using normal magazines with full capacity. Even the bolt stays the same, and all that changes is the barrel. Expect to hear a lot more about this cartridge as many more companies announce products at the 2012 Shot Show and throughout next year.