The Fort Scott TUI .357 SIG 95gr 20-round box load is a Fort Scott Munitions Tumble Upon Impact cartridge in .357 SIG, packed as a 20-round box. Fort Scott Munitions turns the bullet from non-lead solid copper on CNC lathes, and its Tumble Upon Impact design is intended to tumble end over end once it meets water-based tissue. Fort Scott lists a muzzle velocity of 1614 fps from a 4.25-inch test barrel with a 1:16 twist. Fort Scott positions the TUI line for hunting, match shooting and self-defense.

Key Specifications

• The chambering is .357 SIG, so the box fits only firearms chambered for exactly that cartridge.
• Bullet weight is 95 grains, the weight Fort Scott loads for this TUI round.
• The bullet is a solid copper spun (SCS) TUI design, a bullet machined from solid copper on a CNC lathe.
• Construction is non-lead solid copper, so the bullet contains no lead.
• The Tumble Upon Impact design is multi-patented and built to tumble end over end on contact with water-based tissue.
• Muzzle velocity is 1614 fps from a 4.25-inch test barrel, the figure Fort Scott publishes for this load.
• The test barrel uses a 1:16 twist, which tells you the rifling the published velocity was measured with.
• Cartridge overall length is 1.135-inch, worth checking against your magazine and feed geometry.
• The box holds 20 rounds, the quantity you receive with this listing.
• The published test load uses 10.6 grains of Power Pistol powder, the charge behind the listed velocity.

Frequently Asked Questions

How does the Tumble Upon Impact bullet work? Fort Scott says the multi-patented bullet tumbles end over end when it meets water-based tissue, which creates a more effective and destructive wound channel than a conventional profile.

Can I cycle the same round through my firearm repeatedly? Fort Scott cautions that repeated cycling of an unfired cartridge can cause the projectile crimp to fail and the bullet to loosen, which it says is more common with larger monolithic projectiles.

Should I clean my barrel before shooting it? Fort Scott recommends cleaning your barrel thoroughly before shooting solid copper or brass ammunition if you were using anything else, and says a clean barrel improves accuracy and performance with solid monolithic ammunition.

Buy the Fort Scott Munitions TUI .357 SIG 95gr Solid Copper Spun Ammunition, 20-Round Box

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