.32 Winchester Special

The .32 Winchester Special is a rimmed cartridge created in October 1901 for use in the Winchester Model 94 lever-action rifle. It is similar in name but unrelated to the .32-20 Winchester cartridge.Wikipedia
Rifling twist1 in 16 in (410 mm)
Bullet diameter.321 in (8.2 mm)
Case capacity45 gr H2O (2.9 cm3)
Case length2.040 in (51.8 mm)
Rim diameter.506 in (12.9 mm)
Base diameter.422 in (10.7 mm)