I was one of the instigators in getting DW to come out with a 10mm in a 1911.
The result was the Razorback.
I liked it so much I asked if they would produce one in CCO configuration. Bob Serva said it sounded like fun. I wound up with the only Razorback CCO in existence as far as I know.
I carried one or the other on the ranch for 20 years.
The 10mm is an awesome cartridge, I dropped a coyote at 80 yards, shot an antelope that had been hit by a car in the back of the head and blew both eyes out of their sockets.
shot 700 pound heifer that had been hit by a car. I shot her between the eyes and knocked her over backwards.
When I moved to town I put both guns in the safe and started carrying a Colt Defender in 45 ACP. I think 10mm is a little bit too much horsepower for in town stuff.