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Handgun Cartridge Detail

This information is derived from a combination of sources: manufacturer's specifications, measuruments performed by the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) and approximation formulas devloped by Genitron.com.

Cartridge Specifications for Caliber: .45 Auto
.45 Automatic (.45 Automatic Colt Pistol (ACP))
.45 Automatic
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
WeightVelocityEnergy
From:185 gr900 ft/sec333 ft-lbs
To230 gr960 ft/sec471 ft-lbs
Cartridge Used in Database
WeightVelocityEnergy
230 gr850 ft/sec369 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.