The Sierra Bullets MatchKing 6.5mm 142 Gr Hollow Point Boat Tail is a precision-engineered bullet designed for target shooting. With a bullet diameter of .264 inches and a sectional density of .291 it offers superior performance and accuracy. The bullet features a copper jacket and a lead core enhancing its stability in flight. Sold in boxes of 100 this bullet is crafted without a cannelure and is ideal for marksmen seeking consistent results.