Delivering effective shot patterns that place all projectiles on a man-sized target at seven yards, the Critical Defense 410 features a unique Triple Defense projectile column consisting of two 35 caliber round balls topped with one non-jacketed FTX slug. Unique to the Critical Defense 410, the 41 caliber FTX slug actually engages the gun's rifling, and contacts the target nose-on, enabling the patented Hornady Flex Tip technology to assist in expansion for greatly enhanced terminal performance. Each 35 caliber round ball is made of high antimony, cold swaged lead to resist deformation and provide excellent penetration. Critical Defense 410 Triple Defense - you be the JUDGE! FLEX TIP TECHNOLOGY The Flex Tip technology of the FTX Slug assists in expansion, delivering enhanced terminal performance. DEFENSE-CENTERED DESIGN Critical Defense 410 was developed to provide the best performance for defensive or personal protection situations. Delivering effective shot patterns that place all projectiles on a man-sized target at seven yards, the Critical Defense 410 features a unique Triple Defense projectile column. DEPENDABLE PENETRATION Round balls made of high antimony, cold-swaged lead resist deformation and provide dependable penetration.