Hornady's V-Max Bullets feature a polymer tip which enhances accuracy and promotes devastating expansion. The tip raises the ballistic coefficient for faster velocity and also acts as a wedge, initiating bullet expansion. The boat tail creates in-flight stability for long-range shooting. Hornady's swaging process creates precise formation of the core around the tip of the bullet, creating a build-up of energy which contributes to its phenomenal performance.The copper jacket provides the necessary bearing surface for maximum stability out of the barrel, and the jacket is built to withstand the fast twist rates of the most advanced varmint rifles. This is not loaded ammunition. A 1 in 12" twist rate or faster is recommended for optimal performance. Specifications and Features: Bullet Caliber: 22 Caliber Bullet Coating: Non-Coated Bullet Style: Polymer Tip Boat Tail Cannelure: No Country of Origin: United States of America Diameter: 0.224 Inches G1 Ballistic Coefficient: 0.242 Grain Weight: 50 Grains Lead Free: No Quantity: 100 Bullet Recommended Twist Rate: 1 in 12" or Faster Sectional Density: 0.142