Hornady Custom 38 Special 158gr XTP JHP ammunition is loaded with Hornady's patented Extreme Terminal Performance (XTP) bullets and is designed to deliver maximized penetration and expansion for reliable defensive performance under stress.This ammunition features matched powders and primers designed to deliver optimal pressure and consistent velocities for superior reliability when it matters most.Select tumble-polished brass casings offer smooth operation and consistent operation in any high-stress personal defense application.Features / SpecsManufacturer: HornadyBrand Style: CustomBullet Style: Jacketed Hollow Point (JHP)Cartridge: 38 SpecialBullet Brand Style: XTPBullet Weight (Grains): 158Muzzle Energy: 199 ft lbsMuzzle Velocity: 800 FPSRounds: 25Hornady produces most of its own brass for their Custom line of handgun ammunition and that brass is made or chosen for reliable feeding corrosion resistance proper hardness and the ability to withstand maximum chamber pressures.Powders are matched with each load to ensure optimal pressure velocity volume and lot to lot consistency. Primers are chosen to match each powder and load and to quickly and reliably ignite the powder charge.With XTP FMJ or the new FTX (Flex Tip eXpanding) bullets Hornady Custom handgun ammunition is hard-hitting accurate and proven.