Last reviewed: 2026-04-17 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
Fort Scott Munitions TUI 380 ACP ammunition answers the demand for lead-free self-defense loads that prioritize penetration depth over expansion mechanics. Each 95-grain projectile is CNC-machined from solid copper rod stock, eliminating jacket separation and core fragmentation variables. The patented tumble-upon-impact geometry initiates controlled yaw when the bullet contacts water-based tissue, creating a wound channel distinct from traditional hollow-point expansion. At 940 feet per second from a 4-inch test barrel, this load generates 186 foot-pounds of energy — sufficient velocity to drive the monolithic projectile through barriers and intermediate obstacles while maintaining structural integrity. Brass cases accept Boxer primers and reload cleanly for shooters who process their own range brass.
Load Profile
The TUI bullet design relies on geometric tumbling rather than mechanical expansion. Upon entry, the solid copper projectile rotates end-over-end through tissue, producing a wound channel diameter larger than the bullet’s frontal area without fragmenting or shedding mass. This behavior differs from jacketed hollow points, which depend on hydraulic pressure to peel petals. Fort Scott loads these rounds to self-defense velocities — 940 fps represents a balance between penetration depth and chamber pressure in subcompact 380 ACP pistols. Muzzle energy of 186 foot-pounds sits above standard ball loads while remaining within SAAMI pressure specifications. Recoil impulse tracks closely with 90-grain FMJ practice rounds, simplifying training transitions. Brass cases and non-corrosive Boxer primers support reloading workflows, though solid copper bullets require dedicated seating dies and powder charge adjustments compared to traditional jacketed bullets.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 380 ACP |
| Bullet weight | 95 grains |
| Bullet type | Solid copper (tumble-upon-impact) |
| Muzzle velocity | 940 fps (4-inch barrel) |
| Muzzle energy | 186 ft-lbs |
| Rounds per box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Lead-free | Yes |
| Reloadable | Yes |
| Intended use | Self-defense |
| Country of origin | United States |
This load fits shooters running subcompact 380 pistols in states with lead-free ammunition mandates or indoor ranges prohibiting traditional projectiles. The solid copper construction eliminates lead exposure during loading and firing. Browse additional defensive options in our 380 ammo selection.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Follow the four rules of firearm safety at all times
- Verify current state and local laws governing ammunition possession and transport in your jurisdiction
- Solid copper bullets may produce different points of impact compared to jacketed projectiles — confirm zero before carrying for self-defense
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