Out of stock
Underwood Ammo 147 XTP 357Sig 124gr Jacketed Hollow Point 20 Per Box/10 Case
$21.92
Underwood Ammo 357 Sig ammunition loaded with Hornady XTP hollow points puts proven terminal performance in your defensive or training magazine. The 124-grain projectile combines Hornady's eXtreme Terminal Performance bullet design—engineered for consistent expansion and deep penetration—with Underwood's proprietary powder and pressure optimization. This is serious centerfire handgun ammunition for shooters who demand reliable function and predictable on-target results, whether you're working through practice drills or building a duty load you trust.
The XTP bullet's construction balances velocity with controlled expansion, giving you the terminal consistency that matters in a defensive round. Underwood's careful attention to powder charge and primer selection ensures each of these 20-round boxes delivers the velocity and pressure characteristics you're counting on. Available in 10-box cases, this ammunition scales to supply your training pipeline or stock your preferred carry load.
Built in the USA and backed by Underwood's reputation for clean-burning powders and precise hand-loading discipline, this 357 Sig load is engineered for accuracy and function across the wide range of modern 357 Sig platforms in circulation. If you shoot a 357 Sig—whether a SIG P226, P229, or other compatible pistol—this round deserves consideration on your shelf.
Key Features
- Hornady XTP jacketed hollow point bullets for controlled expansion and deep penetration
- 124-grain projectile optimized for 357 Sig performance
- Underwood's proprietary powder and load development
- 20 rounds per box; 10 boxes per case
- Designed for defensive practice and duty use
Specifications
| Caliber | 357 Sig |
| Bullet Weight | 124 grains |
| Bullet Type | Jacketed Hollow Point (XTP) |
| Rounds Per Box | 20 |
| Boxes Per Case | 10 |
| Brand | Underwood Ammo |
Frequently Asked Questions
What pistols does this 357 Sig ammunition work with?
This ammunition is loaded for any firearm chambered in 357 Sig. Common platforms include the SIG P226, P229, and other modern pistols in that caliber. Always consult your firearm's manual to confirm caliber compatibility before loading.
Is this round suitable for self-defense or just range practice?
Underwood designed this load with both defensive practice and duty use in mind. The Hornady XTP bullet is engineered for the controlled expansion and penetration needed in defensive applications, though as always, verify any ammunition choice complies with local laws and your department or personal policy.
How is Underwood Ammo manufactured?
Underwood Ammo is produced in the USA. They hand-load their ammunition with carefully formulated powders and quality primers to maintain strict pressure and velocity standards.
What's included in a case purchase?
Each case contains 10 boxes of ammunition, with 20 rounds per box, for a total of 200 rounds per case.
