Hornady Ammo 9mm +P 135 Gr FlexlocCritical DUTY� Law enforcement and tactical professionals now have a truly advanced, 21st century handgun ammunition solution that delivers the most consistent and reliable urban barrier performance ever created! The proven Flex Tip� design of the new FlexLock� bullet eliminates clogging and aids bullet expansion. Its large mechanical jacket-to-core InterLock� band works to keep the bullet and core from separating for maximum weight retention and proven terminal performance through all FBI test barriers. 1) 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. 2) CANNELURED BULLET WITH CRIMPED CASE ensures no bullet setback during feeding. 3) INTERLOCK� BAND works to keep the bullet and core from separating for maximum weight retention and proven terminal performance through all FBI test barriers. 4) CORE is made of high-antimony lead making it extremely tough, delivering controlled expansion for unparalleled terminal performance consistency through all FBI test barriers. It�s also more economical than similar bonded bullets. 5) NICKEL-PLATED CASES resist corrosion and greatly enhance low-light chamber checks