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The 117 grain #1630 Spitzer Boat Tail GameKing bullet has a jacket produced by Sierra's unique four-station jacket draw process. This process produces jackets with maximum concentricity and uniformity together with uniform taper dimensions, resulting in bullets with extraordinary accuracy, dependable expansion, and deep penetration on medium game. The 117 grain #1630 bullet is best when ranges of shots are 200 to 500 yards.

This bullet was developed after extensive research and a year and a half of testing by Sierra, and it exemplifies our commitment to quality and performance of our products. The jacket of this bullet is formed from the heaviest Sierra cup through Sierra's unique four-station draw to very precise dimensions. A very hard 3% antimony lead alloy core is inserted, and the bullet is given the classic Sierra SBT shape. Designed especially for the 375 H&H Magnum cartridge, this bullet has excellent expansion and deep penetration on heavy game at all ranges for a wide variety of hunting situations. Sierra has received many reports of 5-shot groups at 100 yards that measured less than half an inch extreme spread! An exceptionally high ballistic coefficient and smashing down-range performance combine to make this an ideal bullet in a 375 H&H Magnum or 378 Weatherby Magnum for the largest game on the North American continent and for heavy thin-skinned African game.