Product Overview
The Fort Scott Munitions 5.56x45mmNATO 55gr Solid Copper Spun Tumble Upon Impact (TUI) ammunition is engineered for consistent performance across various applications. This rifle ammunition features a 55-grain solid copper projectile, designed to maintain its integrity upon striking a target.
Tumble Upon Impact (TUI) Technology
Fort Scott’s patented TUI technology ensures the projectile stabilizes rapidly in flight and initiates a predictable tumble upon impact. This design facilitates efficient energy transfer within the target, contributing to reliable terminal ballistics without relying on fragmentation or expansion. The solid copper construction provides consistent penetration and eliminates lead fouling.
Application Utility
Initially developed as a high-performance hunting ammunition, the TUI projectile delivers effective performance on game. Its controlled terminal effect also positions it as a robust option for personal defense and law enforcement applications, where predictable terminal ballistics are critical. This ammunition provides a versatile solution for both range training and critical defensive scenarios.
Technical Specifications
- Caliber: 5.56x45mmNATO
- Projectile Weight: 55 Grain
- Projectile Type: Solid Copper Spun Tumble Upon Impact (TUI)
- Construction: Solid Copper
- Application: Hunting, Personal Defense, Law Enforcement, Range Training









