This throws a wrench in the debate that a 9 has enough stopping power. IMO for concealed carry yes, I even carry a pocket 9, but I wouldn't hit the field with one. It's an individual preference, but here is another example of a larger round being desired. If a 9 has enough stopping power, why does the Marine Corp want a 45 for close quarters combat? The USMC has answered the call and has a new version of the 45 rolling out. This gun looks pretty sweet, minus the price.
THE COLT MARINE PISTOL
Although the M1911A1 in .45 ACP was superseded in 1985 by the M9 as the official sidearm of the U.S. military, the U.S. Marine Corps has adopted an updated version of the gun—the M45 CQB, or, in its civilian version, the Marine—for some special operations troops.
http://www.americanrifleman.org/article ... sub=21&q=1