Ballistic Silvertip ammunition provides hunters proven immediate knock-down and extreme precision. Innovation combined with engineering excellence makes Ballistic Silvertip the choice for those who appreciate the legendary excellence Winchester is known for around the world. Features: Polymer tip - resists deformation, maximizes long-range performance and promotes expansion Alloyed lead core - provides rapid fragmentation in varmint bullets Contoured jacket - provides controlled expansion to maximize knock-down Boat tail design - solid base delivers excellent long-range accuracy Lubalox (black oxide) coating - reduces engraving forces and barrel fouling