Fort Scott Munitions TUI Features The Fort Scott Munitions TUI load is built around a 150 grain solid copper SCS projectile chambered in .300 AAC Blackout engineered using the company s patented Tumble Upon Impact design. Rather than expanding like a traditional hollow point the bullet is designed to tumble after striking its target which contributes to superior penetration through barriers and tissue. Because the projectile is a solid copper spin it contains no lead core making it a lead free alternative to conventional jacketed ammunition. This design gives shooters a reliable terminal performance profile for both training and defensive applications whether the target is barrier-blind or soft tissue. Each box contains 20 rounds of this .300 AAC Blackout load giving shooters enough rounds for a solid range session or to stock a defensive ammunition supply. The solid copper construction also tends to reduce fouling compared to some lead-core designs which can mean less cleaning after extended range use. Multi-patented technology behind the Tumble Upon Impact design reflects Fort Scott Munitions focus on engineering penetration and terminal performance rather than traditional expansion a philosophy that sets the SCS bullet apart from standard jacketed soft point or hollow point loads. Because the design relies on controlled tumbling rather than mushrooming performance stays consistent across a range of barriers and materials which is an important trait for anyone loading a defensive magazine. Shooters running a .300 AAC Blackout platform looking for a lead free option with consistent performance will find this TUI load a dependable choice for sale at GrabAGun whether the rifle is a short-barreled suppressor host or a standard carbine length build. Fort Scott Munitions TUI Specifications Manufacturer: Fort Scott Munitions Series: TUI Caliber: .300 AAC Blackout Bullet Type: Solid Copper Spun Bullet Weight: 150 Grain Rounds Per Box: 20 Available At: GrabAGun