So in this test I did the normal work up with a little extra. Two rounds into bare gel, two rounds into heave clothing, and two rounds from a short barrel pistol in bare gel. Lastly I tried something new. Two rounds from a short barreled pistol into gel covered with a single layer T-shirt.
The first four rounds were fired from a Sig 320 compact with a 4 inch barrel. The first round fired into bare gel had a velocity of 1101fps and penetrated to 17.5 inches and expanded to .59 inches. Round number two had a velocity of 1113fps, penetrated to 15 inches and expanded to .61 inches.
The first round into the heavy clothing had a impact velocity of 1109fps expanded to .61 inches and penetrated to 18 inches. The second round penetrated to 17 inches and expanded to .58 inches. The crony didn’t pick up the velocity.
Now some short barreled test with my 3 inch S&W Shield. Two rounds into bare gel then two through cotton T-shirt covered. Round one in the bare gel had a velocity of 1017fps, penetrated to 16.5 inches, with expansion of .62 inches. Round two also penetrated to 16.5, expanded to .64 inches with a velocity of 1051fps.
Finally, two round fired from a 3 inch Shield into gel covered by a cotton T-shirt. I didn’t get a velocity reading on the first round but it penetrated to 14 inches and expanded to .63 inches. The last round impacted 1024fps, penetrated to 15.75 inches and expanded to .65 inches.