The Chameleon includes interchangeable cylinders and easily removable and replaceable barrels, which allow the shooter to switch calibers in just a few minutes.
The Colt SAA revolver only served officially for the U.S. Cavalry between 1873 and 1892, which begs the question of what other handguns served American horse soldiers before and after those years?
In 1917 both the Colt and Smith & Wesson factories had large bore revolvers in their line-up. Colt’s was the New Service, which was being offered in bore sizes ranging from .38 to .45.