Optimized for home-defense applications, Winchester® Silvertip™ .223 64gr Defense Tip ammo features a patented Silvertip® nickel-plated hollow-point bullet, designed to deliver unmatched penetration and reliable expansion for superior lethality. Select brass casings offer smooth operation and jam-free performance, while clean-burning powders and non-corrosive boxer primers ensure optimal velocity, and consistency for superior reliability when it matters most.