.25-20 Winchester

.25-20 Winchester

Description

The .25-20 Winchester, or WCF, was developed around 1895 for the Winchester Model 1892 lever action rifle. It was based on necking down the .32-20 Winchester. In the early 20th century, it was a popular small game and varmint round, developing around 1,460 ft/s with 86-grain bullets. Wikipedia
 
Bullet diameter.258 in (6.6 mm)
Case length1.330 in (33.8 mm)
Neck diameter.274 in (7.0 mm)
Rim diameter.408 in (10.4 mm)
Shoulder diameter.333 in (8.5 mm)
Base diameter.349 in (8.9 mm)