HOWEVER! During the late 1970's or early 1980's two new cartridges, the 9mm and .45 Winchester Magnums, were introduced. I believe they were chambered in the LAR Grizzly Pistol, an oversized 1911 platform. They were both ill fated and disappeared quickly.
Oh, and don't forget the .38...
This whole concept just scares the hell out of me. Just look at how many guns are sold or traded on any given day. I'm a police Officer and I know this for what it is. A publicity stunt to give the general public a warm fuzzy that they are dilligently working on a case that is not going anywhere...
It's an interesting concept, however a little voice in my head (no smart remarks please!) is telling me that it'd be uncomfortable, bulky and I also don't think it would be Pmag compatible. I don't use any other mag now. I've even retired my expensive H&K high reliability mags.
I must admit...