
Availability: In Stock
Current Stock: Out of stock
Underwood Ammo Hard Cast Flat Nose handgun ammunition in .40 S&W delivers a rugged, subsonic round designed for shooters who want serious performance without excessive velocity. At 200 grains and a modest 1000 fps, this load prioritizes penetration and control—ideal for suppressed shooting, self-defense, and close-quarters work where reliability matters more than speed. The hard cast lead bullet and flat nose profile give you predictable, consistent performance downrange, while the nickel-plated brass casing resists corrosion and handles reloading if that's in your plans.
This is working ammo for working guns. Whether you're running a suppressor, testing a new defensive setup, or looking for subsonic practice rounds that won't tear up your ears or your hearing protection, Underwood's formula has earned respect among shooters who actually use their equipment. The hard cast construction means less leading in the barrel—a real benefit if you shoot suppressed or shoot often. At 444 ft-lbs of muzzle energy, you're getting a deliberate, controlled platform rather than a hot load chasing velocity numbers.
Each box contains 20 rounds of new production, non-corrosive ammunition. Boxer priming and reloadable brass mean you can stretch your dollar if you're willing to reload. The ammunition is suppressor-safe and engineered for self-defense applications, making it a solid choice for serious shooters who value substance over hype.
| Caliber | .40 S&W |
| Bullet Weight | 200 grains |
| Bullet Type | Hard Cast Flat Nose (FN) |
| Muzzle Velocity | 1000 feet per second |
| Muzzle Energy | 444 ft-lbs |
| Ballistic Coefficient (G1) | Information not specified |
| Sectional Density | 0.179 |
| Case Type | Nickel-Plated Brass |
| Primer | Boxer (reloadable) |
| Rounds Per Box | 20 |
| Corrosive | Non-corrosive |
| Suppressor Safe | Yes |
| Manufacturer | Underwood Ammo |
Yes. This ammunition is specifically rated safe for use with suppressors, and the subsonic velocity and hard cast bullet make it an excellent choice for suppressed shooting. The 1000 fps load keeps you below the sound barrier, maximizing the effectiveness of your suppressor.
Yes. The cases are nickel-plated brass with boxer primers, so you can reload them after firing if you have the equipment and knowledge to do so.
Underwood designed this load for self-defense applications and suppressed shooting. The hard cast flat nose bullet is engineered for reliable penetration and performance in close-quarters defensive scenarios, and the subsonic velocity makes it ideal for hearing protection and suppressor use.
Yes. The bullet is made from lead (hard cast), so this is lead ammunition. If you have environmental or range concerns about lead, you should verify your local shooting facility's ammunition policy.

SKU: 194201746 • Width: 2.6in • Height: 1.4in • Depth: 3.1in • Weight: 0.845oz





Availability: In Stock
Current Stock: Out of stock
Underwood Ammo Hard Cast Flat Nose handgun ammunition in .40 S&W delivers a rugged, subsonic round designed for shooters who want serious performance without excessive velocity. At 200 grains and a modest 1000 fps, this load prioritizes penetration and control—ideal for suppressed shooting, self-defense, and close-quarters work where reliability matters more than speed. The hard cast lead bullet and flat nose profile give you predictable, consistent performance downrange, while the nickel-plated brass casing resists corrosion and handles reloading if that's in your plans.
This is working ammo for working guns. Whether you're running a suppressor, testing a new defensive setup, or looking for subsonic practice rounds that won't tear up your ears or your hearing protection, Underwood's formula has earned respect among shooters who actually use their equipment. The hard cast construction means less leading in the barrel—a real benefit if you shoot suppressed or shoot often. At 444 ft-lbs of muzzle energy, you're getting a deliberate, controlled platform rather than a hot load chasing velocity numbers.
Each box contains 20 rounds of new production, non-corrosive ammunition. Boxer priming and reloadable brass mean you can stretch your dollar if you're willing to reload. The ammunition is suppressor-safe and engineered for self-defense applications, making it a solid choice for serious shooters who value substance over hype.
| Caliber | .40 S&W |
| Bullet Weight | 200 grains |
| Bullet Type | Hard Cast Flat Nose (FN) |
| Muzzle Velocity | 1000 feet per second |
| Muzzle Energy | 444 ft-lbs |
| Ballistic Coefficient (G1) | Information not specified |
| Sectional Density | 0.179 |
| Case Type | Nickel-Plated Brass |
| Primer | Boxer (reloadable) |
| Rounds Per Box | 20 |
| Corrosive | Non-corrosive |
| Suppressor Safe | Yes |
| Manufacturer | Underwood Ammo |
Yes. This ammunition is specifically rated safe for use with suppressors, and the subsonic velocity and hard cast bullet make it an excellent choice for suppressed shooting. The 1000 fps load keeps you below the sound barrier, maximizing the effectiveness of your suppressor.
Yes. The cases are nickel-plated brass with boxer primers, so you can reload them after firing if you have the equipment and knowledge to do so.
Underwood designed this load for self-defense applications and suppressed shooting. The hard cast flat nose bullet is engineered for reliable penetration and performance in close-quarters defensive scenarios, and the subsonic velocity makes it ideal for hearing protection and suppressor use.
Yes. The bullet is made from lead (hard cast), so this is lead ammunition. If you have environmental or range concerns about lead, you should verify your local shooting facility's ammunition policy.
SKU: 194201746 • Width: 2.6in • Height: 1.4in • Depth: 3.1in • Weight: 0.845oz
