- Sierra GameKing 220 grain Spitzer Boat Tail component bullet, 8mm (.323) diameter
- Purpose-built for the 8mm Remington Magnum for big game hunting
- Boat tail design gives a flatter trajectory and reduced wind drift, closer to match-bullet ballistics
- Heavy double-tapered jacket engineered for deep, controlled penetration on large game
- G1 ballistic coefficient of 0.521; sectional density of 0.301
- Too hard for 8x57mm Mauser velocities — magnum-level cartridges only
- Supplied uncoated, without cannelure, in a box of 50
Sierra's GameKing 8mm (.323) 220 grain Spitzer Boat Tail is a long-range hunting bullet built specifically around the 8mm Remington Magnum, giving reloaders a proven option for the largest game found in North America and thin-skinned African plains species. The boat tail profile delivers the ballistic advantage more commonly associated with match target bullets, holding a flatter trajectory downrange and reducing sensitivity to crosswinds. An extremely heavy, double-tapered jacket is designed to control expansion while still achieving deep, smashing penetration on big-bodied animals. With a G1 ballistic coefficient of 0.521 and a sectional density of 0.301, this is a bullet built for retained energy and controlled expansion rather than rapid varmint-style fragmentation. Sierra rates this projectile as too hard for use in the 8x57mm Mauser and does not recommend it in any cartridge producing less than magnum-level velocities, so it should be reserved for genuine magnum applications. Supplied in a box of 50, uncoated and without a cannelure, this is a component bullet for handloaders working up big-game loads for the 8mm Remington Magnum and similar magnum cartridges.
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