Looking for some info regarding barrier penetration, specifically vehicles and similarly built objects (glass, thin metal, etc.). Which cartridge is going to give me the best penetration after going through a barrier such as a car door or windshield? I'd like to keep it in the 9mm, .357 sig and .40 S&W calibers. Are there specific bullet designs, velocities or bullet weights that perform better no matter the caliber?
Lots of info on the interwebz, but hard determining what is right and what just sounds right but isn't.