This is .22-250 Rem Winchester Supreme 55 grain Ballistic Silvertip Ammo. The Winchester Supreme Ballistic Silvertip’s solid based boat tail design delivers excellent long range accuracy. In medium to larger calibers, the special jacket contours extend the range and reduce cross-wind drift. The harder lead core ensures proper bullet expansion. This ammo is ideal for dealing with any size varmint that you might have on your property. This ammo comes packed in 20 round boxes.