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.
Colt Lightning Carbine The Colt Lightning Carbine or Colt Lightning Rifle was a slide-action (pump-action) rifle manufactured by Colt from 1884 to 1904 and was originally chambered in .44-40 caliber. Colt eventually made the Lightning Rifle in three different frame sizes, to accommodate a wide range of cartridges, from .22 Short caliber and .38-40 to .50-95 Express. Its profile somewhat resembles the pump-action rimfire rifles made by the Winchester Repeating Arms Company and Remington Arms. The Lightning saw use as a sporting arm in America and was adopted for use by the San Francisco Police Department, but was never as popular or as reliable as the various lever-action rifles of its day.