The FLEXLOCK BULLET incorporates two revolutionary Hornady features: the patented Flex Tip that initiates consistent expansion every single time while preventing any clogging, and the heavy duty InterLock band that locks the jacket and core together. This ammunition features a cannelured bullet with crimped case to ensure there is no bullet setback during feeding and the core consists of high-antimony lead which make it tougher than most by delivering controlled expansion for unmatched, consistent performance.