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, resulting in a clean, ethical kill.

Bullet travels straight through skin into vital organ area to do the most damage.

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

The bullet has rotated 180 degrees causing extreme wound cavities.

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

See It In Action

Shop Tumble Upon Impact® Ammo

9MM Luger TUI® - 115Gr Ammo

Original price $ 28.64 - Original price $ 1,392.00

Original price

$ 28.64 - $ 1,392.00

$ 28.64 - $ 1,392.00

Current price $ 28.64

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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 $ 27.28 - Original price $ 1,324.00

Original price

$ 27.28 - $ 1,324.00

$ 27.28 - $ 1,324.00

Current price $ 27.28

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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 $ 27.99 - Original price $ 1,359.50

Original price

$ 27.99 - $ 1,359.50

$ 27.99 - $ 1,359.50

Current price $ 27.99

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COAL : 2.24" POWDER : SMP 735 POWDER WEIGHT : 24GR TEST BARREL LENGTH / TWIST : 24" 1:7" VELOCITY : 3200 FPS Multi-Patented, Tumble Upon Impac...
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5.56 NATO SBS® TUI® - 62Gr Ammo

Original price $ 27.99 - Original price $ 1,359.50

Original price

$ 27.99 - $ 1,359.50

$ 27.99 - $ 1,359.50

Current price $ 27.99

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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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9MM Sub-Munition® TUI® - 125Gr Ammo

Original price $ 30.05 - Original price $ 1,462.50

Original price

$ 30.05 - $ 1,462.50

$ 30.05 - $ 1,462.50

Current price $ 30.05

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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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380 ACP TUI® - 95Gr Ammo

Original price $ 27.73 - Original price $ 1,346.50

Original price

$ 27.73 - $ 1,346.50

$ 27.73 - $ 1,346.50

Current price $ 27.73

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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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45 ACP TUI® - 180Gr Ammo

Original price $ 31.54 - Original price $ 1,537.00

Original price

$ 31.54 - $ 1,537.00

$ 31.54 - $ 1,537.00

Current price $ 31.54

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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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5.56 NATO SCS® TUI® - 55Gr Ammo

Original price $ 27.90 - Original price $ 1,355.00

Original price

$ 27.90 - $ 1,355.00

$ 27.90 - $ 1,355.00

Current price $ 27.90

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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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223 Rem SCS® TUI® - 55Gr Ammo

Original price $ 27.65 - Original price $ 1,342.50

Original price

$ 27.65 - $ 1,342.50

$ 27.65 - $ 1,342.50

Current price $ 27.65

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COAL : 2.245" POWDER : SMP 735 POWDER WEIGHT : 23.5GR TEST BARREL LENGTH / TWIST : 24" 1:7" VELOCITY : 3211 FPS Multi-Patented, Tumble Upon Imp...
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40 S&W TUI® - 125Gr Ammo

Original price $ 29.54 - Original price $ 1,437.00

Original price

$ 29.54 - $ 1,437.00

$ 29.54 - $ 1,437.00

Current price $ 29.54

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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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