Underwood Ammo’s 38 Super +P load (part no. 144) fires a 124 grain Hornady XTP jacketed hollow point, combining Hornady’s eXtreme Terminal Performance bullet with Underwood Ammo‘s own formulated powder charge for deep terminal penetration, strong accuracy, and controlled expansion. The nickel-plated brass casing improves feeding across a wide range of firearm actions while resisting corrosion and tarnish better than plain brass in storage, and like all Underwood loads, this round uses flash-suppressed powder so a shooter’s vision is not compromised if the firearm has to be used in low light. Underwood field-tests its ammunition in popular, real-world firearms rather than lab-only conditions.

Key Specifications

• Chambered in .38 Super Auto +P, a higher-pressure loading of the .38 Super cartridge.
• Bullet weight is 124 grains, a common defensive weight for the caliber.
• Bullet is a Hornady XTP jacketed hollow point, built for controlled expansion and deep terminal penetration.
• Cases are nickel-plated brass, improving feeding and resisting corrosion and tarnish.
• Loaded with flash-suppressed powder to protect a shooter’s vision in low-light use.
• Packed 20 rounds per box, a standard defensive-ammo box count.
• Runs about $1.05 per round at the box price.
• Field-tested by Underwood in popular, real-world firearms rather than lab-only conditions.

Frequently Asked Questions

Does the XTP bullet expand reliably? Yes, the Hornady XTP is engineered for deep terminal penetration and controlled expansion, and Underwood pairs it with a formulated powder charge for consistent performance.

Why flash-suppressed powder? It keeps muzzle flash from compromising a shooter’s vision if the firearm has to be fired in low light.

How many rounds come in a box? This listing is a 20-round box.

Buy the Underwood 38 Super +P 124gr XTP Jacketed Hollow Point Ammunition

Load your 38 Super with a controlled-expansion round built and field-tested for real-world defense. Order from our Lubbock, Texas gun shop and it ships fast to your door.