.32 Winchester Self-Loading

.32 Winchester Self-Loading
TypeRifle
Place of originUnited States
Production history
DesignerWinchester Repeating Arms Company
Specifications
Case typeSemi-rimmed, straight
Bullet diameter.321 in (8.2 mm)
Neck diameter.347 in (8.8 mm)
Base diameter.349 in (8.9 mm)
Rim diameter.390 in (9.9 mm)
Rim thickness0.05 in (1.3 mm)
Case length1.24 in (31 mm)
Overall length1.88 in (48 mm)
Primer typeSmall rifle
Maximum pressure28,000 to 30,000 PSI
Ballistic performance
Bullet mass/type Velocity Energy
165 gr (11 g) 1,392 ft/s (424 m/s) 710 ft⋅lbf (960 J)
Test barrel length: 22
Source(s): Whelen, Townsend. The American Rifle. Century Co. 1918 p. 257

The .32 Winchester Self-Loading (.32SL / .32SLR / .32WSL) or 8.2x31mmSR is an American rifle cartridge.