
Availability: In Stock
Underwood Ammo Hard Cast Keith handgun ammunition in .38 Special +P delivers the hard-hitting performance serious shooters expect for self-defense and hunting applications. This is new production ammo loaded with 158-grain lead hard cast bullets in a semi-wadcutter Keith configuration, generating 1250 feet per second muzzle velocity and 548 foot-pounds of energy. The combination of velocity, bullet weight, and sectional density is built for penetration and stopping power—real-world ballistics for a revolver cartridge that means business.
Built on nickel-plated brass cases, these rounds are boxer-primed and fully reloadable, so brass-savers can keep costs down over time. The ammunition is non-corrosive and suppressor-safe, making it suitable for both conventional and silenced platforms where that matters. Lead bullets require standard range ventilation and cleanup, but the hard-cast construction resists deformation, supporting consistent performance downrange.
The .38 +P designation means these rounds operate at elevated pressure compared to standard .38 Special loads—deliver these only through firearms rated for +P ammunition. Each box ships with 20 rounds, making it an economical buy for practice, qualification, or duty carry. Underwood's reputation for loaded ammunition quality and straightforward ballistics make this a trusted choice among revolver shooters who refuse compromise on terminal performance.
| Caliber | .38 Special +P |
| Bullet Weight | 158 grains |
| Bullet Type | Lead Semi-Wadcutter Keith (LSWC) |
| Bullet Diameter | 0.357" |
| Muzzle Velocity | 1250 fps |
| Muzzle Energy | 548 ft-lbs |
| Sectional Density | 0.177 |
| Case Material | Nickel-plated brass |
| Primer Type | Boxer |
| Rounds Per Box | 20 |
| Reloadable | Yes |
| Corrosive | No |
| Suppressor Safe | Yes |
These rounds are loaded to .38 Special +P pressure levels, which are higher than standard .38 Special. You must confirm your revolver is rated for +P ammunition before firing them. If you're unsure, contact the manufacturer or consult your manual.
Yes, this ammunition is suppressor-safe. However, confirm that your specific suppressor is rated for .38 Special and check with the suppressor manufacturer if you have any compatibility questions.
Yes. These are new production rounds in boxer-primed, nickel-plated brass that can be reloaded after firing, allowing you to recover and reuse the cases for future handloading.
The ballistic coefficient (G1) data was not provided by the manufacturer for this load. For detailed ballistic modeling or long-range analysis, contact Underwood Ammo directly with the specific lot information.

SKU: 194201719 • Width: 2.2in • Height: 2in • Depth: 2.7in • Weight: 0.7oz





Availability: In Stock
Underwood Ammo Hard Cast Keith handgun ammunition in .38 Special +P delivers the hard-hitting performance serious shooters expect for self-defense and hunting applications. This is new production ammo loaded with 158-grain lead hard cast bullets in a semi-wadcutter Keith configuration, generating 1250 feet per second muzzle velocity and 548 foot-pounds of energy. The combination of velocity, bullet weight, and sectional density is built for penetration and stopping power—real-world ballistics for a revolver cartridge that means business.
Built on nickel-plated brass cases, these rounds are boxer-primed and fully reloadable, so brass-savers can keep costs down over time. The ammunition is non-corrosive and suppressor-safe, making it suitable for both conventional and silenced platforms where that matters. Lead bullets require standard range ventilation and cleanup, but the hard-cast construction resists deformation, supporting consistent performance downrange.
The .38 +P designation means these rounds operate at elevated pressure compared to standard .38 Special loads—deliver these only through firearms rated for +P ammunition. Each box ships with 20 rounds, making it an economical buy for practice, qualification, or duty carry. Underwood's reputation for loaded ammunition quality and straightforward ballistics make this a trusted choice among revolver shooters who refuse compromise on terminal performance.
| Caliber | .38 Special +P |
| Bullet Weight | 158 grains |
| Bullet Type | Lead Semi-Wadcutter Keith (LSWC) |
| Bullet Diameter | 0.357" |
| Muzzle Velocity | 1250 fps |
| Muzzle Energy | 548 ft-lbs |
| Sectional Density | 0.177 |
| Case Material | Nickel-plated brass |
| Primer Type | Boxer |
| Rounds Per Box | 20 |
| Reloadable | Yes |
| Corrosive | No |
| Suppressor Safe | Yes |
These rounds are loaded to .38 Special +P pressure levels, which are higher than standard .38 Special. You must confirm your revolver is rated for +P ammunition before firing them. If you're unsure, contact the manufacturer or consult your manual.
Yes, this ammunition is suppressor-safe. However, confirm that your specific suppressor is rated for .38 Special and check with the suppressor manufacturer if you have any compatibility questions.
Yes. These are new production rounds in boxer-primed, nickel-plated brass that can be reloaded after firing, allowing you to recover and reuse the cases for future handloading.
The ballistic coefficient (G1) data was not provided by the manufacturer for this load. For detailed ballistic modeling or long-range analysis, contact Underwood Ammo directly with the specific lot information.
SKU: 194201719 • Width: 2.2in • Height: 2in • Depth: 2.7in • Weight: 0.7oz
