.44 Colt

.44 Colt
Benet primed .44 Colt & Remington, .44 Colt and .44 Remington.
TypeRevolver
Place of originUnited States
Service history
In service1871–1873
Used byUnited States Army
Production history
Produced1871–1940
Specifications
Case typerimmed straight
Bullet diameter.451 in (11.5 mm)
Base diameter.456 in (11.6 mm)
Rim diameter.483 in (12.3 mm)
Case length1.10 in (28 mm)
Overall length1.50 in (38 mm)
Rifling twist1:16 in (410 mm)
Primer typelarge pistol
Ballistic performance
Bullet mass/type Velocity Energy
225 gr (15 g) (U.S. Army black powder load) 640 ft/s (200 m/s) 207 ft⋅lbf (281 J)
225 gr (15 g) (factory load) 640 ft/s (200 m/s) 207 ft⋅lbf (281 J)
210 gr (14 g) (factory load) 660 ft/s (200 m/s) 206 ft⋅lbf (279 J)
210 gr (14 g) (original factory black powder load) 660 ft/s (200 m/s) 206 ft⋅lbf (279 J)
210 gr (14 g) (smokeless, Lyman #429185) 650 ft/s (200 m/s) 197 ft⋅lbf (267 J)
Source(s): Barnes & Amber 1972

The .44 Colt / 11.5x28mmR is an American centerfire revolver cartridge that was produced commercially from 1871 to 1940.

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