Shipping Dimensions: Approximately 2.91 x 2.25 x 1.17 inches to 3.25 x 1.5 x 1.5 inches depending on size selected. The bullet's center-post hollow-point design provides optimized penetration with consistent, threat-stopping expansion. It can also be found in 12 gauge shotgun slugs. For time-tested personal defense, choose Federal Premium Hydra Shok. The Hydra-Shok is available in various calibers 9x19mm Parabellum, 10mm Auto.
There has been much debate regarding the bullet's unreliable expansion when fired through clothing or media other than ballistic gelatin, in which the bullet typically displays very rapid expansion resulting in a larger but more shallow wound channel than would be typical from most other bullet configurations in the same caliber and of similar weight. The manufacturer says that the scored jacket and center post design provide a "programmed" expansion. Center post designed bullets like Hydra-Shok have more predictable results and therefore offer some advantage as a projectile. Together they are meant to provide more reliable expansion and deeper penetration than the other projectiles used at that time.
Hydra-Shok ammunition features a unique, patented center-post design and notched jacket with a non-bonded lead core. Together they are meant to provide more reliable expansion and deeper penetration. Hydra-Shok bullets feature a unique, patented center-post design and notched jacket. It was originally patented by bullet designer Tom Burczynski. Hydra-Shok was released in 1988 after the FBI requested a bullet with better terminal ballistics than traditional cup and core projectiles. Hydra-Shok is a type of expanding bullet used in commercial ammunition made by Federal Cartridge. It was originally patented by ammunition designer Tom Burczynski. 38 Special +P 130 Grain Hydra-Shok Deep Hollow Point Nickel Plated Brass Cased Centerfire Pistol Ammunition Federal Premium Personal Defense line provides consistent expansion, optimum penetration and superior terminal performance with bullet weights and propellants optimized for the most. Hydra-Shok is a type of hollow-point projectile made by Federal Premium Ammunition. Product Info for Federal Premium Hydra-Shok Deep.