Description
Federal took their proven Hydra-Shok platform and reworked it from the ground up. The Hydra-Shok Deep features a more robust center post inside the hollow cavity, paired with a new core geometry designed to handle what you'd actually encounter in a defense situation. This isn't just a minor tweak—testing shows the Deep penetrates significantly deeper while expanding more consistently, even after passing through heavy clothing or other barriers.
What makes the Deep different comes down to engineering details that matter when it counts. The center post is wider and more pronounced, directing fluid transfer into six skived pockets formed by the jacket. This controlled design drives rapid expansion without sacrificing weight retention, which keeps penetration at optimal depths. Two cannelures around the bullet's lower half lock the jacket to the core, ensuring the round stays together through barriers rather than fragmenting or losing velocity unexpectedly.
Hydra-Shok Deep Performance Through Real-World Barriers
Federal designed this round to meet modern testing standards. You're getting a 130-grain jacketed hollow point that leaves the barrel at 900 feet per second with 234 foot-pounds of energy. The nickel-plated brass casing pairs clean-burning powders with non-corrosive primers, so you get reliable ignition and smooth feeding in every platform from compact snubbies to full-size wheelguns.
Why the Redesign Matters for .38 Special +P
The .38 has unique ballistics constraints that don't exist with larger cartridges. Short barrels become the norm, and velocity drops fast. Federal's answer was to make the bullet itself smarter, so it performs consistently whether you're shooting from a two-inch snubbie or a four-inch service revolver. The improved center post and core design give you penetration depths that meet FBI standards while keeping expansion reliable when cloth gets in the way—something earlier Hydra-Shok loads struggled with.
Key Specifications
- Caliber: .38 Special +P
- Bullet Type: Jacketed Hollow Point (Hydra-Shok Deep)
- Bullet Weight: 130 Grains
- Muzzle Velocity: 900 ft/s
- Muzzle Energy: 234 ft-lbs
- Case Material: Nickel-Plated Brass
- Rounds per Box: 20
- Primer Type: Non-Corrosive
- Manufacturer: Federal Ammunition
- Manufacturer Part Number (MPN): P38HSD1
- UPC: 604544672794
- Overall Length: 2.950 inches
- Application: Personal Defense and Home Protection
What’s Included
- 20 rounds of Federal Hydra-Shok Deep .38 Special +P ammunition
Frequently Asked Questions
How does Hydra-Shok Deep perform through barriers like heavy clothing?
The improved center post and new core geometry drive reliable expansion even after passing through denim, fleece, and cotton layers. Federal's redesign specifically addresses barrier performance, giving you consistent results that meet FBI testing standards. This is a major upgrade over earlier Hydra-Shok versions, which sometimes struggled with fabric-clogged cavities.
Can I use this ammunition in a standard .38 Special revolver?
No. The +P designation means higher pressure ammunition. This round is only safe in firearms specifically rated for +P loads. Check your revolver's documentation or contact the manufacturer to confirm compatibility. Using +P ammo in non-rated firearms can cause serious damage and injury.
How is the Hydra-Shok Deep different from the original Hydra-Shok?
Federal redesigned the center post to be more robust and created a new core geometry that delivers deeper penetration and more consistent expansion. Testing shows the Deep penetrates significantly deeper—around 50 percent improvement over the original—while performing 70 percent better in FBI barrier tests. It's a meaningful upgrade, not just a minor revision.
Is Hydra-Shok Deep good for short-barrel revolvers?
Yes. Federal specifically engineered this round to perform well from shorter barrels like the snubby revolvers common in personal defense. Even when fired from a 1.875-inch barrel, the 130-grain bullet still reaches optimal penetration depths because the load balances velocity with controlled expansion. It's one of the few .38 +P rounds designed with short barrels in mind.




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