never knew abiout that
yep. tons of great info on ballistics. and check this:
"What does a 12 ga. slug do to body armor? After multiple tests with our firearms unit, I can tell you with certainty. With a good condition, dry (wet vests lose their integrity) ballistic vest, a 12 ga. slug failed to penetrate the vest when fired from 25 yards. The test was conducted 8 times...none penetrated. 12 ga. slugs are too blunt to penetrate a vest. That said, they would have caused massive damage, and the wounds would definitely be life-threatening.
The vests were hung over ballistic gel with a shirt over it, simulating a common vest set-up. The 12 ga. slugs forced the vest into the gel, causing a blunt-force wound which averaged over 4 inches deep.
Hit the vital organs that hard, and you're going to cause death. No doubt in my mind."