.45 Caliber Handgun

List of handgun cartridges.
Winchester Magnum .45Caliber(11.5mm) AND Remington Magnum .44Caliber(11.1mm) High-Powered Handguns.
( The 9mm is low-powered & ineffective at close-quarter-combat. The .44 and .45ACP are the most powerful, commonly used HandGun cartridges. )
Another Excellent Video: Beretta PX4 Storm G' .45ACP 4.0" (10-Round)