About Tumble Upon Impact®

Fort Scott Munitions’® monolithic, solid copper projectiles are specially engineered to tumble when striking water-based tissue. This Tumble Upon Impact® TUI® design ensures that the distribution of damage primarily occurs internally instead of at first contact with skin.

Bullet travels straight through skin into vital organ area.

Once hitting the water-based tissue, the bullet begins to tumble.

The bullet has rotated 180 degrees causing extreme wound cavities.

TUI® ammo tumbles cutting through everything in its path causing extensive damage.

See It In Action

Shop Tumble Upon Impact® Ammo

9MM Luger TUI® - 115Gr Ammo

Original price $ 29.07 - Original price $ 1,413.50

Original price

$ 29.07 - $ 1,413.50

$ 29.07 - $ 1,413.50

Current price $ 29.07

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COAL : 1.155" POWDER : POWER PISTOL POWDER WEIGHT : 5.4GR TEST BARREL LENGTH / TWIST : 4" 1:10" VELOCITY : 1140 FPS Multi-Patented, Tumble Upo...
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9MM Luger TUI® - 80Gr Ammo

Original price $ 27.69 - Original price $ 1,344.50

Original price

$ 27.69 - $ 1,344.50

$ 27.69 - $ 1,344.50

Current price $ 27.69

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COAL : 1.155" POWDER : BULLSEYE POWDER WEIGHT : 5.2GR TEST BARREL LENGTH / TWIST : 4" 1:10" VELOCITY : 1374 FPS Multi-Patented, Tumble Upon Im...
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5.56 NATO SCS® TUI® - 62Gr Ammo

Original price $ 28.41 - Original price $ 1,380.50

Original price

$ 28.41 - $ 1,380.50

$ 28.41 - $ 1,380.50

Current price $ 28.41

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COAL : 2.210" POWDER : SMP 735 POWDER WEIGHT : 23GR TEST BARREL LENGTH / TWIST : 24" 1:7" VELOCITY : 3200 FPS Multi-Patented, Tumble Upon Impa...
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5.56 NATO SBS® TUI® - 62Gr Ammo

Original price $ 28.41 - Original price $ 1,380.50

Original price

$ 28.41 - $ 1,380.50

$ 28.41 - $ 1,380.50

Current price $ 28.41

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COAL : 2.245" POWDER : SMP 735 POWDER WEIGHT : 24GR TEST BARREL LENGTH / TWIST : 24" 1:7" VELOCITY : 3200 FPS Multi-Patented, Tumble Upon Impa...
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380 ACP TUI® - 95Gr Ammo

Original price $ 28.15 - Original price $ 1,367.50

Original price

$ 28.15 - $ 1,367.50

$ 28.15 - $ 1,367.50

Current price $ 28.15

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COAL : .980" POWDER : POWER PISTOL POWDER WEIGHT : 3.8GR TEST BARREL LENGTH / TWIST : 4" 1:16" VELOCITY : 940 FPS Multi-Patented, Tumble Upon I...
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9MM Sub-Munition® TUI® - 125Gr Ammo

Original price $ 30.50 - Original price $ 1,485.00

Original price

$ 30.50 - $ 1,485.00

$ 30.50 - $ 1,485.00

Current price $ 30.50

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COAL : 1.155" POWDER : POWER PISTOL POWDER WEIGHT : 4.6GR TEST BARREL LENGTH / TWIST : 4" 1:10" VELOCITY : 950 FPS Multi-Patented, Tumble Upon...
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45 ACP TUI® - 180Gr Ammo

Original price $ 32.01 - Original price $ 1,560.50

Original price

$ 32.01 - $ 1,560.50

$ 32.01 - $ 1,560.50

Current price $ 32.01

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COAL : 1.210" POWDER : ACCURATE #5 POWDER WEIGHT : 9.4GR TEST BARREL LENGTH / TWIST : 5" 1:16" VELOCITY : 989 FPS Multi-Patented, Tumble Upon ...
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10MM SCS® TUI® - 125Gr Ammo

Original price $ 32.63 - Original price $ 1,591.50

Original price

$ 32.63 - $ 1,591.50

$ 32.63 - $ 1,591.50

Current price $ 32.63

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COAL : 1.250" POWDER : POWER PISTOL POWDER WEIGHT : 13GR TEST BARREL LENGTH / TWIST : 5" 1:16" VELOCITY : 1611 FPS Multi-Patented, Tumble Upon ...
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5.56 NATO SCS® TUI® - 55Gr Ammo

Original price $ 28.32 - Original price $ 1,376.00

Original price

$ 28.32 - $ 1,376.00

$ 28.32 - $ 1,376.00

Current price $ 28.32

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COAL : 2.245" POWDER : SMP 735 POWDER WEIGHT : 25GR TEST BARREL LENGTH / TWIST : 24" 1:7" VELOCITY : 3426 FPS Multi-Patented, Tumble Upon Impa...
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40 S&W TUI® - 125Gr Ammo

Original price $ 29.98 - Original price $ 1,459.00

Original price

$ 29.98 - $ 1,459.00

$ 29.98 - $ 1,459.00

Current price $ 29.98

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COAL : 1.125" POWDER : BULLSEYE POWDER WEIGHT : 7.1GR TEST BARREL LENGTH / TWIST : 4" 1:16" VELOCITY : 1321 FPS Multi-Patented, Tumble Upon Im...
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