Description
Fort Scott's 62-grain 5.56 NATO TUI ammo is built around a patented design that sets it apart from standard military or commercial loads. Each projectile is precision-machined from solid brass using CNC lathes, giving you the exact same ballistics shot after shot. That consistency matters whether you're zeroing in at the range, taking a field shot, or counting on these rounds when it matters.
What makes TUI technology different is how the projectile behaves on impact. Unlike traditional expanding ammo or FMJ rounds, the solid brass construction enters soft tissue intact, traveling straight through skin and initial layers before tumbling end-over-end deeper in the tissue. That tumbling action creates significantly larger temporary wound channels while the projectile retains over 95% of its original mass. The result is more damage where it counts and less over-penetration risk compared to standard loads.
Performance and Field Reliability
These rounds clock 3200 fps from a 24-inch barrel with 1410 ft-lbs of muzzle energy, which puts them in a sweet spot for medium-range hunting and tactical work. The 62-grain weight stabilizes well in 1:7, 1:8, and 1:9 twist barrels, making them compatible with most AR-platforms and bolt guns. You'll notice very mild recoil—manageable enough for fast follow-up shots but substantial enough that the round actually does work downrange. The brass casing is reloadable, and Fort Scott's quality control is tight enough that you'll get consistent velocity run to run.
Why Solid Brass Over Lead
The solid brass construction gives you several advantages. Because there are no moving parts inside the projectile like traditional bonded bullets, reliability is straightforward. You also get to shoot these in areas where lead ammunition is restricted. Beyond that, the material choice means you're not dealing with jacket separation or unpredictable bullet performance—solid brass is just brass all the way through, engineered to perform exactly as designed.
Key Specifications
- Caliber: 5.56x45mm NATO / .223 Remington
- Bullet Weight: 62 grains
- Bullet Type: Solid Brass Spun (SBS)
- Muzzle Velocity: 3200 fps (24" barrel, 1:7 twist)
- Muzzle Energy: 1410 ft-lbs
- Case Material: Brass
- Primer: Boxer
- Reloadable: Yes
- Rounds Per Box: 20
- Lead-Free: Yes
- Overall Length (OAL): 2.245 inches
- UPC: 758381721167
- Manufacturer Part Number: 556-062-SBV1
- Manufacturer: Fort Scott Munitions
- SAAMI Compliant: Yes
What’s Included
- 20 rounds of 5.56 NATO ammunition
- Cardboard ammunition box
Frequently Asked Questions
Will this Fort Scott 5.56 ammo work in my rifle?
Yes, it's fully SAAMI compliant and works in any rifle or AR-platform chambered for 5.56 NATO or .223 Remington. The 62-grain weight stabilizes best in barrels with 1:7, 1:8, or 1:9 twist rates, which covers most modern rifles. Just confirm your rifle's twist rate to get optimal accuracy.
What's the real advantage of TUI ammunition over standard hunting rounds?
The patented tumble-upon-impact design creates larger temporary wound channels through the initial penetration phase, then the projectile tumbles end-over-end deeper in tissue. Since the solid brass retains over 95% of its mass and doesn't rely on expansion, you get more predictable performance through barriers, heavy hide, and bone compared to expanding bullets that shed velocity quickly.
Can I reload these brass cases?
Yes, the brass cases are reloadable. Fort Scott performs annealing on their casings as part of their manufacturing process, which extends case life and ensures consistent diameters run-to-run. This makes them a solid choice if you reload and want quality brass.
Are these lead-free rounds suitable for hunting in restricted areas?
Yes, the solid brass construction means these rounds contain no lead, making them legal in areas where lead ammunition is prohibited. The performance characteristics also make them effective for hunting medium game where lead-free requirements exist.





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