Revolver cartridge
.32 Short Rimfire Type Rifle and handgun Place of origin United States Designer Smith & Wesson Designed 1860 Case type Rimmed, straight[ 1] Bullet diameter .316 in (8.0 mm) Neck diameter .318 in (8.1 mm) Base diameter .318 in (8.1 mm) Rim diameter .377 in (9.6 mm) Case length 0.575 in (14.6 mm) Overall length 0.948 in (24.1 mm) Primer type Rimfire
Bullet mass/type
Velocity
Energy
80 gr (5 g) Rimmed
945 ft/s (288 m/s)
159 ft⋅lbf (216 J)
Test barrel length: 24
.32 Long Rimfire Type Pistol /Rifle Place of origin United States Designer Smith & Wesson Designed 1860 Case type Rimmed, straight[ 1] Bullet diameter .316 in (8.0 mm) Neck diameter .318 in (8.1 mm) Base diameter .318 in (8.1 mm) Rim diameter .377 in (9.6 mm) Case length 0.791 in (20.1 mm) Overall length 01.26 in (32 mm) Primer type Rimfire
Bullet mass/type
Velocity
Energy
90 gr (6 g) Rimmed
1,080 ft/s (330 m/s)
233 ft⋅lbf (316 J)
Test barrel length: 24
.32 Extra Long Type Pistol /Rifle Place of origin United States Case type Rimmed, straight[ 1] Bullet diameter .316 in (8.0 mm) Neck diameter .318 in (8.1 mm) Base diameter .318 in (8.1 mm) Rim diameter .377 in (9.6 mm) Case length 1.150 in (29.2 mm) Overall length 01.26 in (32 mm) Primer type Rimfire
Bullet mass/type
Velocity
Energy
90 gr (6 g) Rimmed
1,050 ft/s (320 m/s)
221 ft⋅lbf (300 J)
Test barrel length: 24
The .32 rimfire / 8x20mmRF refers to a family of cartridges which were chambered in revolvers and rifles in the late 19th and early 20th centuries. These rounds were made primarily in short and long lengths, but extra short, long rifle and extra long lengths were offered.[ 1]
^ a b c d Barnes, Frank C. (1997). M.L. McPherson (ed.). Cartridges of the World (8th ed.). p. 386. ISBN 0873491785 
