The Fort Scott TUI 7.62x39mm 117gr 20-round box load is a Fort Scott Munitions Tumble Upon Impact cartridge in 7.62x39mm, packed as a 20-round box. The bullet is a non-lead solid copper spun design from Fort Scott Munitions, machined on precision CNC lathes, and the multi-patented Tumble Upon Impact profile is built to tumble end over end on contact with water-based tissue. Fort Scott lists a muzzle velocity of 2336 fps from a 20-inch test barrel with a 1:9.45 twist. Fort Scott positions the TUI line for hunting, match shooting and self-defense.

Key Specifications

• The chambering is 7.62x39mm, so the box fits only firearms chambered for exactly that cartridge.
• Bullet weight is 117 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 2336 fps from a 20-inch test barrel, the figure Fort Scott publishes for this load.
• The test barrel uses a 1:9.45 twist, which tells you the rifling the published velocity was measured with.
• Cartridge overall length is 2.185-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 25 grains of CFE Black powder, the charge behind the listed velocity.

Frequently Asked Questions

What velocity does this load produce? Fort Scott lists 2336 fps from a 20-inch test barrel with a 1:9.45 twist, loaded to a cartridge overall length of 2.185-inch.

Does this round need any preparation in an AR-10 pattern rifle? Fort Scott notes that AR10 platforms that are not MIL-SPEC do not carry the same specifications as AR15 (MIL-SPEC) platforms, and recommends polishing the feed ramp and checking headspace before using it.

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.

Buy the Fort Scott Munitions TUI 7.62x39mm 117gr Solid Copper Spun Ammunition, 20-Round Box

This 7.62x39mm TUI box ships direct from our Lubbock, Texas gun shop with fast, insured delivery, and our rifle ammunition selection has more to look through.