Nosler's E-TIP, Lead Free, Expansion Tip bullets upon impact, Nosler's exclusive E Cavity (Energy Expansion Cavity) allows for immediate and uniform expansion, yet retains 95% weight for improved penetration. The E Cavity provides amazing stopping power and peerless penetration over a broad spectrum of impact velocities, rivaling even the highest quality lead-core bullets. Oal 1.464" Series Hunting Weight 180 gr Quantity 50 Per Box Cannelure No Bullet Type Spitzer Core Material Copper Solid Bullet Caliber 30 Caliber Bullet Diameter .308 Jacket Material Copper Solid Unit Of Measure box Sectional Density .271 Bullet Tip Material Polymer