Nosler Combined Technology 243 Caliber 6mm/230 Ballistic Silver Tip 95gr Reloading Bullets - 50 Count - Ballistic Silvertip bullets combine all the features of Nosler Ballistic Tip hunting or varmint bullets, but with the addition of an advanced Lubalox external treatment that reduces fouling and creates less barrel wear to promote longer barrel life. Polymer Silvertip Lubalox Exterior Coating Fully Tapered Jacket And Special Lead-Alloy Core Heavy Jacketed Base Ballistically Engineered Solid Base