Handgun Cartridge Detail

Cartridge Specifications for Caliber: .45 Auto

.45 Automatic (.45 Automatic Colt Pistol (ACP))

Specifications
Case Type:	Rimless, straight
Introduced:	1904	Made For:	Semi-Auto
Cart Len:	1.275-in	Case Len:	0.898-in
Case Dia:	0.476-in	Bul Dia:	0.452-in

Ballistics measured with:
5-inch pistol barrel

Cartridge Variants
	Weight	Velocity	Energy
From:	185 gr	900 ft/sec	333 ft-lbs
To	230 gr	960 ft/sec	471 ft-lbs

Cartridge Used in Database
Weight	Velocity	Energy
230 gr	850 ft/sec	369 ft-lbs

Rankings for Cartridge Used in Database
PF:	195500	TKO:	12.624

Description:

This cartridge was developed by John Browning and was adopted by the United States Ordnance Department along with the Colt-Browning automatic pistol in 1911. It has also been made the official military handgun chambering by several other governments, notably Argentina, Mexico and Norway. The 45 Automatic is the most powerful military handgun cartridge in use today. This is a heavy and powerful sub-sonic round. Although its muzzle energy can exceed 400 ft-lbs, its velocity and bullet weight creates a steep trajectory curve that limits its effective range to self-defense distances.