Cartridge : .45ACP Federal Personal Defense 230 grain Hydra-Shok JHP (part # P45HS1) Firearm : Recoil-operated handgun with 3.8" barrel length Calibration : All depths corrected (From 9.3cm @ 593 ft/sec) Shot 1 - 11.6" penetration, 813 ft/sec impact velocity. Average diameter was 0.700". Shot 2 - 12.4" penetration, 807 ft/sec impact velocity. Average diameter was 0.756". Shot 3 - 12.4" penetration, 821 ft/sec impact velocity. Average diameter was 0.762". Shot 4 - 13.0" penetration, 823 ft/sec impact velocity. Average diameter was 0.674". Shot 5 - 11.7" penetration, 811 ft/sec impact velocity. Average diameter was 0.727".