January 10th, 2010
Review over at Military.com by Ralph M. Lermayer:
The .458 SOCOM (.458 Special Operations Command) was reportedly given birth over a barbeque and some cold brew. It was at an informal gathering of special ops personnel, specifically Task Force Ranger, when the subject of stopping power came up. It seems it took multiple hits to permanently take the opposition “out of the game” in Mogadishu, Somalia.
The consensus was a one-shot stop would sure be nice. Marty ter Weeme, founder of a company called Teppo Jutsu, L.L.C., went to work. In 2000 a sledgehammer cartridge that would launch 250- to 600-grain .45 caliber bullets from a standard size AR-15 with a proper barrel and chamber was born — enter the .458 SOCOM.
I’ve fired the .450 Bushmaster and have wondered how the kick of this monster shorty round compares to that one. And advantage of the .458 SOCOM over the .450 Bushmaster is that the lower receiver does not have to be modified. Even standard magazines, apparently, work with the .459 SOCOM.

January 10th, 2010 at 8:07 pm
As a 450 Bushmaster aficionado, allow me to correct a couple of errors. The 450 Bushmaster will fit on any lower without modification and standard .223 magazines will work, but for best performance, one should dremel the follower smooth. Check out our website for more info.