Fort Scott Munitions' Tumble Upon Impact (TUI) 357 Magnum ammunition features solid copper construction designed for reliable self-defense performance and deep penetration.
Fort Scott Munitions has engineered a purpose-built self-defense round that combines match-grade precision with proven stopping power. The 357 Magnum 125-grain TUI (Tumble Upon Impact) round represents a significant advancement in handgun ammunition design.
The TUI design philosophy prioritizes controlled expansion and penetration depth—critical factors in self-defense scenarios. The solid copper construction eliminates concerns about jacket separation while delivering the terminal performance serious shooters demand.