
Availability: In Stock
The Underwood Ammo 232 XTP 10mm ammunition delivers serious stopping power for self-defense and hunting applications. Built on nickel-plated brass cases that are reloadable and non-corrosive, these 155-grain jacketed hollow points are designed to perform when it matters most. Each round exits the muzzle at 1500 feet per second with 775 foot-pounds of energy, making it a potent choice for 10mm shooters who demand reliable, purpose-built ammunition.
What sets this load apart is its purposeful engineering across multiple disciplines. The 155-grain XTP bullet is a proven design that expands reliably on impact while maintaining the penetration needed for effective terminal performance. The nickel-plated brass casings resist corrosion and provide the durability needed for serious shooters who reload. This ammo runs supersonic, so it's also safe for use in suppressed 10mm firearms if that's part of your setup.
Underwood Ammo manufactures this ammunition to strict tolerances, and it's loaded fresh as new production. Whether you're training for defensive proficiency, hunting medium game, or stocking reliable 10mm for your go-to sidearm, these rounds deliver consistent performance. Each box contains 20 rounds, and cases are available in 10-box quantities for shooters who want to stock up.
| Caliber | 10mm Auto |
| Bullet Weight | 155 grains |
| Bullet Type | Jacketed Hollow Point (XTP) |
| Bullet Diameter | 0.40 inch |
| Case Material | Nickel-Plated Brass |
| Case Type | Reloadable Boxer Primed |
| Muzzle Velocity | 1500 feet per second |
| Muzzle Energy | 775 foot-pounds |
| Ballistic Coefficient (G1) | 0.137 |
| Sectional Density | 0.138 |
| Rounds Per Box | 20 |
| Corrosive | No |
| Suppressor Safe | Yes |
| Manufacturer | Underwood Ammo |
Yes. This ammunition is rated safe for use in suppressors and runs supersonic, so it will still produce a report even when suppressed.
Yes. The nickel-plated brass cases are reloadable, which makes this a good choice for shooters who reload their own ammunition.
Underwood engineered these rounds for both applications. The 155-grain XTP hollow point is proven for self-defense and is also effective for hunting medium game with a 10mm.
Each box contains 20 loaded rounds. The product is sold in cases of 10 boxes, giving you 200 total rounds per case.

SKU: 152746818 • Width: 2.6in • Height: 1.4in • Depth: 3.1in • Weight: 0.745oz





Availability: In Stock
The Underwood Ammo 232 XTP 10mm ammunition delivers serious stopping power for self-defense and hunting applications. Built on nickel-plated brass cases that are reloadable and non-corrosive, these 155-grain jacketed hollow points are designed to perform when it matters most. Each round exits the muzzle at 1500 feet per second with 775 foot-pounds of energy, making it a potent choice for 10mm shooters who demand reliable, purpose-built ammunition.
What sets this load apart is its purposeful engineering across multiple disciplines. The 155-grain XTP bullet is a proven design that expands reliably on impact while maintaining the penetration needed for effective terminal performance. The nickel-plated brass casings resist corrosion and provide the durability needed for serious shooters who reload. This ammo runs supersonic, so it's also safe for use in suppressed 10mm firearms if that's part of your setup.
Underwood Ammo manufactures this ammunition to strict tolerances, and it's loaded fresh as new production. Whether you're training for defensive proficiency, hunting medium game, or stocking reliable 10mm for your go-to sidearm, these rounds deliver consistent performance. Each box contains 20 rounds, and cases are available in 10-box quantities for shooters who want to stock up.
| Caliber | 10mm Auto |
| Bullet Weight | 155 grains |
| Bullet Type | Jacketed Hollow Point (XTP) |
| Bullet Diameter | 0.40 inch |
| Case Material | Nickel-Plated Brass |
| Case Type | Reloadable Boxer Primed |
| Muzzle Velocity | 1500 feet per second |
| Muzzle Energy | 775 foot-pounds |
| Ballistic Coefficient (G1) | 0.137 |
| Sectional Density | 0.138 |
| Rounds Per Box | 20 |
| Corrosive | No |
| Suppressor Safe | Yes |
| Manufacturer | Underwood Ammo |
Yes. This ammunition is rated safe for use in suppressors and runs supersonic, so it will still produce a report even when suppressed.
Yes. The nickel-plated brass cases are reloadable, which makes this a good choice for shooters who reload their own ammunition.
Underwood engineered these rounds for both applications. The 155-grain XTP hollow point is proven for self-defense and is also effective for hunting medium game with a 10mm.
Each box contains 20 loaded rounds. The product is sold in cases of 10 boxes, giving you 200 total rounds per case.
SKU: 152746818 • Width: 2.6in • Height: 1.4in • Depth: 3.1in • Weight: 0.745oz
