Varmint X is designed specifically for the demands of predator and varmint hunters. The sleek, polymer-tipped bullets are explosive upon impact. It combines the proven dependability Winchester is known for with today's latest technology, providing hunters the ammunition of choice for pursuing everything from prairie dogs to coyotes.The X Lead-Free ammunition is designed specifically for the demands of predator and varmint hunters. The sleek, lead-free, zinc-core bullets are explosive upon impact. Specifications: 22-250 Rem/38 gr/Lead Free Polymer Tip Rapid Expansion/20 Per Box/10 Cs