The Fort Scott TUI Sub-Munition 8.6 Blackout 285gr 20-round box load is a subsonic 8.6 Blackout from Fort Scott Munitions, built around a 285-grain solid copper TUI bullet and 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 1056 fps from a 12-inch test barrel with a 1:3 twist, and the load is tuned for a 12-inch barrel. Fort Scott positions the TUI line for hunting, match shooting and self-defense.

Key Specifications

• The chambering is 8.6 Blackout, so the box fits only firearms chambered for exactly that cartridge.
• Bullet weight is 285 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 1056 fps from a 12-inch test barrel, the subsonic figure Fort Scott publishes for this load.
• The test barrel is 12-inch long with a 1:3 twist, and the load is tuned for a 12-inch barrel.
• Cartridge overall length is 2.800-inch, worth checking against your magazine and feed geometry.
• The box holds 20 rounds, the quantity you receive with this listing.
• The published ballistic coefficient is .700, the drag figure Fort Scott publishes for this bullet.

Frequently Asked Questions

What barrel is the 8.6 Blackout load tuned for? Fort Scott lists it as tuned for a 12-inch barrel, with the 1056 fps figure measured from a 12-inch test barrel with a 1:3 twist.

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.

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 Sub-Munition 8.6 Blackout 285gr Solid Copper Ammunition, 20-Round Box

This 8.6 Blackout TUI box ships direct from our Lubbock, Texas gun shop with fast, insured delivery, and our rifle ammunition selection has more to look through.