Complex sentence: The Hydra-Shok cartridge is a JHP (Jacketed Hollow Point) round as opposed to FMJ (Full Metal Jacket) bullets which have a smooth, rounded tip designed for accuracy and penetration.
Split into simpler sentences: The Hydra-Shok cartridge is a JHP (Jacketed Hollow Point) round. Another bullet, referred to as FMJ (Full Metal Jacket) has a smooth, rounded tip designed for accuracy and penetration.