What handgun cartridge designed by John Browning in 1905, for use in his prototype Colt semi-automatic pistol, is chambered in a third-generation semi-automatic pistol from Smith & Wesson's 4500 series of handguns?
.45 ACP The .45 ACP (Automatic Colt Pistol), or .45 Auto (11.43×23mm) is a handgun cartridge designed by John Browning in 1905, for use in his prototype Colt semi-automatic pistol. After successful military trials it was adopted, along with the Browning .45 Colt handgun, as the .45 M1911 cartridge. The handgun was designated M1911 pistol.
.450 Adams The .450 Adams was a British black powder centrefire revolver cartridge, initially used in converted Beaumont–Adams revolvers, in the late 1860s. Officially designated .450 Boxer Mk I, and also known variously as the .450 Revolver, .450 Colt, .450 Short, .450 Corto and .450 Mark III, and in America as the .45 Webley, it was the British Army's first centrefire revolver round.