.32-20 Winchester

The .32-20 Winchester, also known as .32 WCF, was the first small-game lever-action cartridge that Winchester produced. It was initially introduced as a black-powder cartridge in 1882 for small-game, varmint hunting, and deer. Colt produced a single-action revolver chambered for this cartridge a few years later. Wikipedia
 
Bullet diameter.3125 in (7.94 mm)
Case length1.315 in (33.4 mm)
Rim diameter.408 in (10.4 mm)
Neck diameter.327 in (8.3 mm)
Base diameter.354 in (9.0 mm)
Shoulder diameter.342 in (8.7 mm)