Fort Scott Munitions Tumble Upon Impact ammunition is an all in one designed cartridge. From hunting, match shooting, to every day carry self defense, this ammunition offers superior results for every occasion. The TUI bullets are machined from solid copper or brass rods on a CNC lathe. With the quality control that Fort Scott requires every day and the tight tolerances of these projectiles, you are able to trust and expect the same results with every pull of the trigger. With the bullets being solid copper or brass, you have no moving parts to rely on. Unlike most ammo, the TUI rounds do the most damage internally instead of first contact with skin. With the patented design, TUI ammo tumbles end over end when it comes in contact with water based tissue, creating a more devastating wound channel. FeaturesMulti-Patented, Tumble Upon Impact designSuperior penetrationNon lead, Solid Copper Spun SCS bullet