.30-06 Springfield

.30-06 Springfield

Description

The .30-06 Springfield cartridge, 7.62×63mm in metric notation and called ".30 Gov't '06" by Winchester, was introduced to the United States Army in 1906 and later standardized; it remained in use until the early 1980s. The ".30" refers to the caliber of the bullet in inches. Wikipedia
 
Case length0′ 2″
Bullet diameter.308 in (7.8 mm)
Rifling twist1-10" (254 mm)
Case capacity68 gr H2O (4.4 cm3)
Parent case.30-03 Springfield
Shoulder diameter.441 in (11.2 mm)