.264 Winchester Magnum

.264 Winchester Magnum

Description

The .264 Winchester Magnum is a belted, bottlenecked rifle cartridge. Except for the .244 H&H Magnum and .257 Weatherby Magnum, it is the smallest caliber factory cartridge derived from the 2.85 in Holland & Holland belted magnum case.Wikipedia
 
Case length2.5 in (64 mm)
Bullet diameter.264 in (6.7 mm)
Base diameter.515 in (13.1 mm)
Neck diameter.299 in (7.6 mm)
Rim diameter.532 in (13.5 mm)
Shoulder diameter.491 in (12.5 mm)