.32-20 Winchester
The .32-20 Winchester, also known as .32 WCF (Winchester center fire), 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.
| .32-20 Winchester | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
.32-20 (Left), .32 ACP (Right) | ||||||||||||
| Type | Rifle, revolver | |||||||||||
| Place of origin | United States | |||||||||||
| Production history | ||||||||||||
| Designer | Winchester Repeating Arms Company | |||||||||||
| Designed | 1882 | |||||||||||
| Produced | 1882–present | |||||||||||
| Specifications | ||||||||||||
| Case type | Rimmed, bottleneck | |||||||||||
| Bullet diameter | .3125 in (7.94 mm) | |||||||||||
| Land diameter | .3051 in (7.75 mm) | |||||||||||
| Neck diameter | .327 in (8.3 mm) | |||||||||||
| Shoulder diameter | .342 in (8.7 mm) | |||||||||||
| Base diameter | .354 in (9.0 mm) | |||||||||||
| Rim diameter | .408 in (10.4 mm) | |||||||||||
| Rim thickness | .065 in (1.7 mm) | |||||||||||
| Case length | 1.315 in (33.4 mm) | |||||||||||
| Overall length | 1.592 in (40.4 mm) | |||||||||||
| Rifling twist | 1 in 20 in (510 mm) | |||||||||||
| Primer type | Small pistol | |||||||||||
| Maximum CUP | 16,000 CUP | |||||||||||
| Ballistic performance | ||||||||||||
| ||||||||||||
| Source(s): "Cartridges of the World" | ||||||||||||
The name .32-20 refers to the 32 caliber bullet of .312-inch-diameter (7.9 mm) and standard black-powder charge of 20 grains (1.3 g).
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