Speer Grand Slam 270Cal 130gr Soft Point projectiles are engineered for the world's toughest big game. The construction features a unique ternary lead alloy core injected molten into a profiled jacket, which is significantly thicker in the shank to prevent deformation. Internal flutes ensure symmetrical expansion, while a rear lock ring secures the core to the jacket for exceptional weight retention. This design allows the bullet to punch through heavy bone and thick hide while maintaining the accuracy needed for long-range mountain hunting. Defensive Application Built for maximum penetration on large animals, these bullets pose an extreme over-penetration risk in urban settings and are not recommended for home defense.