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.