Federal Personal Defense Hydra-Shok, 32 ACP, 68 Grain, Hydra-Shok Deep Jacketed Hollow Point, 20 Round Box P32HSD1 We're giving the classic 32 Auto defensive cartridge a new life thanks to the most modern bullet technology. Hydra-Shok Deep 32 Auto maximizes the cartridge's available energy to deliver critical penetration through bare ballistics gelatin and heavy clothing.