Fort Scott Munitions TUI 9mm Luger 80gr SCS Centerfire Handgun Ammo – 20 Rounds – Fort Scott Munitions TUI ammo is a match grade handgun bullet, designed to be reassuringly effective for self-defense. Engineered to Tumble Upon Impact and create a dynamic wound cavity, the unique, patented design of Fort Scott’s TUI pistol ammunition penetrates targets deeply.