Fort Scott Munitions‘s TUI ammunition in .223 Remington (brand part no. 223055SCV) loads a 55-grain solid copper spun bullet engineered to Tumble Upon Impact rather than expand, delivering what the manufacturer calls devastating stopping power. This match-grade bullet is designed primarily as precision ammo for rifle hunters, but Fort Scott’s multi-patented TUI technology also makes it a genuine option for home defense or law enforcement use. Machined from solid copper with no lead core to fragment or separate, the bullet’s unique geometry drives it to tumble and keep penetrating once it contacts the target. For .223 Remington shooters who want a lead-free bullet with a fundamentally different terminal mechanism than a standard hunting or defensive round, this rifle ammunition is built around that difference.

Key Specifications

• The chambering is .223 Remington/5.56 NATO, one of the most common AR-platform cartridges.
• The bullet weighs 55 grains, a standard weight for the caliber.
• The bullet is Solid Copper Spun, Fort Scott’s TUI (Tumble Upon Impact) design.
• The multi-patented geometry causes the bullet to tumble rather than expand, driving deep, devastating stopping power.
• Fort Scott markets it as precision ammo for rifle hunters that also suits home defense or law enforcement.
• The construction is solid copper and lead-free, with no core to fragment or separate.
• The case material is brass, giving reliable extraction and standard chamber compatibility.
• Cost runs about $1.27 per round, in line with premium solid-copper rifle ammunition.
• Each box holds 20 rounds, a standard count for a range or hunting trip.

Frequently Asked Questions

How does TUI ammunition work? Instead of expanding, the bullet’s patented geometry causes it to tumble on impact, driving deep penetration and a wide wound path.

Is this ammunition built for hunting or defense? Fort Scott markets it as precision ammo for rifle hunters that also suits home defense and law enforcement use.

Is this bullet lead-free? Yes, it is machined from solid copper with no lead core.

Buy Fort Scott Munitions TUI .223 Remington 55gr

A bullet that tumbles instead of expanding is a genuinely different approach to terminal performance, and Fort Scott built a multi-patented design around proving it. Order from our Lubbock, Texas gun shop and it ships fast to your door.