.300 Winchester Magnum

The .300 Winchester Magnum is a belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard rifle action.Wikipedia
 
Bullet diameter.308 in (7.8 mm)
Case length2.62 in (67 mm)
Rifling twist1:10 (254 mm)
Case capacity93.8 gr H2O (6.08 cm3)
Parent case.375 H&H Magnum
Shoulder diameter.489 in (12.4 mm)
Base diameter.513 in (13.0 mm)

Hornady 300 Win Mag 180 gr InterLock® SP American Whitetail®

Hornady, American Whitetail, 300 Win, 180 Grain, Soft Point, InterLock, 20 Round Box

$39.51 $28.51

Hornady 300 WIN Mag 180 gr GMX® Outfitter™

Hornady, Outfitter, 300 Winchester Magnum, 180 Grain, GMX, 20 Round Box, California Certified Nonlead Ammunition

$56.67

Hornady 300 Win Mag 178 gr ELD® Match

Hornady, Match, 300 Win, 178 Grain, ELD Match, 20 Round Box

$56.17 $38.95

Hornady 300 Win Mag 165 gr GMX® Superformance®

Hornady, SuperFormance, 300 WIN MAG, 165 Grain, GMX, Lead Free, 20 Round Box, California Certified Nonlead Ammunition

$60.72 $43.72

Hornady 300 Win Mag 150 gr InterLock® SP American Whitetail®

Hornady, American Whitetail, 300 WIN MAG, 150 Grain, Soft Point, InterLock, 20 Round Box

$39.51 $28.51

Hornady 300 Weatherby Mag 200 gr ELD-X® Precision Hunter®

Hornady, Precision Hunter, 300 Weatherby Magnum, 200 Grain, ELD-X, 20 Round Box

$65.55 $44.55