This Sako 9.3×66 Sako Hammerhead rifle ammunition is 286 grain. Hammerhead has a heavy, jacketed bonded core and soft point for larger calibers. Specially designed bullet form and construction prevents core separation and allows controlled mushrooming for excellent stopping power. 20 per box. A heavy jacketed and soft-point bullet with a bonded core. The bullet shape and construction are especially designed to prevent core separation and provide controlled mushrooming with excellent stopping power. Round nose design increases expansion speed and dependability. The bullet is very effective for big game hunting at short distances.