The Underwood Ammo 147 XTP 357 Sig 124 Grain Jacketed Hollow Point is engineered as a high-performance handgun load that pairs Hornady’s proven XTP bullet with Underwood’s carefully tuned propellant and nickel-plated brass case. This combination delivers deep terminal penetration, controlled expansion, and reliable feeding, making it a trusted option for demanding shooters.

This .357 Sig cartridge is tailored for personal protection and hunting where consistent accuracy and dependable expansion are critical. Flash-suppressed powder helps preserve sight picture in low light, while the reloadable nickel-plated brass case resists corrosion and simplifies cleanup. Together with the 124 grain XTP projectile and supersonic 1475 fps muzzle velocity, this round offers a balanced blend of power and control backed by Underwood Ammo’s reputation for meticulous craftsmanship and innovation.

Key Features:

• Manufacturer: Underwood Ammo
• Model: 147 XTP 357 Sig 124gr Jacketed Hollow Point
• Caliber: .357 Sig
• Bullet Type: Jacketed Hollow Point (XTP)
• Bullet Weight: 124 Grains
• Muzzle Velocity: 1475 Feet Per Second
• Muzzle Energy: 599 Foot Pounds
• Case Material: Nickel-Plated Brass
• Rounds Per Box: 20
• Application: Medium Game, Personal protection