The Fort Scott TUI .308 Winchester 150gr 20-round box load is a Fort Scott Munitions Tumble Upon Impact cartridge in .308 Winchester, packed as a 20-round box. Fort Scott Munitions machines the bullet as a non-lead solid copper spun projectile on precision CNC lathes, and the patented Tumble Upon Impact design is meant to have it tumble end over end when it meets water-based tissue. Fort Scott lists a muzzle velocity of 2904 fps from a 24-inch test barrel with a 1:12 twist. Fort Scott positions the TUI line for hunting, match shooting and self-defense.

Key Specifications

• The chambering is .308 Winchester, so the box fits only firearms chambered for exactly that cartridge.
• Bullet weight is 150 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 2904 fps from a 24-inch test barrel, the figure Fort Scott publishes for this load.
• The test barrel uses a 1:12 twist, which tells you the rifling the published velocity was measured with.
• Cartridge overall length is 2.790-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 43.4 grains of SMP 735 powder, the charge behind the listed velocity.

Frequently Asked Questions

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.

What velocity does this load produce? Fort Scott lists 2904 fps from a 24-inch test barrel with a 1:12 twist, loaded to a cartridge overall length of 2.790-inch.

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 .308 Winchester 150gr Solid Copper Spun Ammunition, 20-Round Box

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