Cartridge : Remington 124gr +P Golden Saber (load #GS9MMD) Firearm : Recoil-operated handgun with 4.0" barrel length. Calibration : 8.4 ± 0.05cm and 574 ± 0.500 ft/sec impact velocity. The average penetration was 12.6 ± 0.031" with the shallowest bullet penetrating to 12.0 ± 0.031" and the deepest penetrating bullet to 13.3 ± 0.031". Average recovered diameter for these bullets was 0.684 ± 0.0005". Average impact velocity was 1098 ± 0.500 fps, with the fastest traveling at 1122 ± 0.500 fps and the slowest round traveling at 1063 ± 0.500 fps.