.338 Winchester Magnum
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The .338 Winchester Magnum is a .338 in caliber, belted, rimless, bottlenecked cartridge introduced in 1958 by Winchester Repeating Arms. It is based on the blown-out, shortened .375 H&H Magnum. The .338 in is the caliber at which medium-bore... Wikipedia
Case capacity: 86 gr H2O (5.6 cm3)
Case length: 2.500 in (63.5 mm)
Manufacturer: Winchester Repeating Arms
Maximum pressure: 64,000 psi
Parent case: .375 H&H Magnum
Rifling twist: 1-10"