.270 Winchester Short Magnum

.270 Winchester Short Magnum

Description

The 270 Winchester Short Magnum or 270 WSM is a short, unbelted, magnum cartridge created by necking down the .300 Winchester Short Magnum and fitting it with a .277 caliber bullet. Wikipedia
 
Case length2.100 in (53.3 mm)
Bullet diameter.277 in (7.0 mm)
Overall length2.860 in (72.6 mm)
Base diameter.5550 in (14.10 mm)
Neck diameter.3140 in (7.98 mm)