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About Tumble Upon Impact (TUI) Ammunition

These loadings feature Fort Scott's specialized bullets designed to tumble and fragment upon impact for enhanced energy transfer and tissue disruption in defensive applications. Developed by Fort Scott for defensive applications in both rifle and pistol calibers like .223 and 9mm, the TUI bullet incorporates a solid copper construction with engineered geometry that causes the projectile to tumble and break apart upon impact, creating multiple wound channels and maximizing energy dump. The TUI design emphasizes rapid energy transfer and enhanced stopping power while maintaining penetration characteristics suitable for defensive scenarios. These types of loadings are well-suited for defensive applications where maximum energy transfer, enhanced tissue disruption, and reliable stopping power are essential for effective threat neutralization in defensive scenarios across multiple firearm platforms.

Common Tumble Upon Impact (TUI) Calibers

• 9mm:The 9mm Luger cartridge is easily the most common handgun round in common use. The caliber goes by many names, often being referred to as 9mm NATO, 9mm Parabellum, 9x19mm, or just generically “9mm”. The cartridge’s origins can be traced back to the early 20th century and is the brainchild of Georg Luger. Originally found in firearms such as the Borchardt C-93 and the P-08 Luger pistol, the round has become a common chambering for handguns in civilian and military use from the 20th century onward. Firearms such as pistols and submachine guns in 9mm Luger have commonly been used by military and law enforcement personnel across the globe, leading to the round establishing a reputation for being a reliable service cartridge.
• .223 Remington:The .223 Remington, often referred to as the .223 Rem, is one of the most common rifle calibers in the United States. As an intermediate rifle cartridge, .223 Rem loadings will produce a light recoil impulse and feature a light projectile. The rounds will typically yield a high velocity and feature a flat trajectory. While the cartridge and its NATO cousin have seen duty use, the .223 Rem has also established itself as a capable round as far as target shooting and hunting go as well. The round is enjoyed by shooters, both new and experienced, due to the light recoil and overall performance afforded by the cartridge.
• 5.56x45mm:The 5.56x45mm NATO’s roots can be traced to the .223 Remington cartridge, a popular smallbore sporting cartridge. Initially, development for the cartridge began in the United States in 1957 alongside efforts to develop a smallbore, high-velocity firearm. This would eventually lead to the introduction of the AR-15 and subsequent M16 series of rifles. The cartridge would go on to see use by American forces in the Vietnam War and subsequent conflicts. During the 1970s and 1980s, NATO expressed interest in a standardized, smallbore cartridge to replace the 7.62x51mm NATO round. This led to the cartridge’s adoption by NATO in the form of the SS109 cartridge. After its adoption, the round has seen use with NATO members and allies such as the United Kingdom, Austria, France, and even Japan.
• 8.6 Blackout:The 8.6 Blackout cartridge is a recent addition to the market, introduced in 2022 by Q. At its core, the cartridge utilizes a .338 caliber projectile with a shortened 6.5 Creedmoor case and is optimized for use in short barrels. Specifically, the round is at home in firearms with barrel lengths ranging from 9” to 12”. The use of a 6.5 Creedmoor case allows the cartridge to be utilized in magazines designed for the .308 Winchester and 6.5 Creedmoor without reducing capacity. The cartridge features a manageable and tame recoil impulse, something not normally associated with rounds utilizing a .338 projectile. Heavier projectile weights allow the cartridge to be loaded to subsonic specs, purpose built for suppression. The loadings with grain weights of 300 grains and higher are particularly optimal for this use as they ensure velocities stay subsonic even out of some of the longer barrels on the market.

Firearms that Use Tumble Upon Impact (TUI) Ammo

• Pistols
• Rifles

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• About Fort Scott Munitions