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Fort Scott Munitions engineered the .357 Magnum 125 grain TUI load around a revolutionary solid copper bullet design that flips end-over-end when it hits soft tissue. Instead of relying on traditional expansion, this patented technology creates extreme internal damage through tumbling, generating aggressive wound channels while the bullet retains over 95% of its mass. The result is performance that balances deep penetration with controlled energy release.
The 125 grain solid copper spun bullet launches at 1424 feet per second with 562 foot-pounds of energy from a standard 6-inch test barrel. Real-world testing shows penetration depths around 6 inches with significant temporary wound cavities. Because the damage happens primarily internally rather than at first contact with skin, this ammunition works well in situations where controlling energy transfer matters. The precision manufacturing holds incredibly tight tolerances, and each round is machined from pure copper rods on CNC lathes, ensuring consistency shot to shot.
These rounds contain zero lead, making them suitable for indoor ranges and sensitive environments. The 100% solid copper construction means no jacket separation or fragmentation—the bullet stays together while tumbling through the target. The brass cases are reloadable for those who want to maximize value from every round, and the ammunition meets SAAMI standards for safe chamber pressures.
Fort Scott designed this ammunition for applications where performance must be predictable. The precision machining and rigorous testing guarantee some of the tightest tolerances on the market. Whether you're running this through a revolver from close range or shooting precision groups at the range, the consistent velocity and accuracy make it reliable for multiple purposes.
The solid copper bullet enters tissue traveling straight, then begins to tumble end-over-end once it hits water-based material. This creates a larger wound channel through the projectile's rotation rather than traditional expansion. The tumbling action causes the bullet to rotate approximately 180 degrees, generating extreme temporary wound cavities while the solid copper retains nearly all its mass.
Fort Scott specifically designed this ammunition for home defense applications. The TUI technology controls penetration by releasing energy internally through tumbling rather than punching straight through. Testing shows the ammunition penetrates approximately 6 inches with dynamic wound cavities, which many consider appropriate for defensive use. As always, follow your local guidelines and ensure safe backstops.
Yes, the brass cases are reloadable. Because Fort Scott manufactures these rounds to tight match-grade tolerances and the solid copper bullet maintains consistent dimensions, the once-fired brass works well for handloaders. The ammunition is boxer-primed, making extraction straightforward.
While traditional 125 grain loads expand upon impact, Fort Scott's TUI design uses a solid copper bullet that tumbles instead. This approach distributes damage primarily internally rather than at first contact, which can help control penetration. The solid copper construction also means zero lead exposure and superior mass retention compared to expanding hollow points that may shed fragments.
| UPC | 758381721662 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 357MAG125SCV |
| Caliber/Gauge | .357 Magnum |
| Case Material | Brass |
| Grains | 125 gr |
| Length | 2.7000 |
| Units per Box | 20 |
| Cost per Round | 1.55 |
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