FTA:
But U.S. District Judge Janet Bond Arterton in New Haven in a 74-page ruling rejected those claims, saying the group failed to establish that assault weapons and large capacity magazines are commonly bought and used for self-defense.
Arterton, an appointee of former Democratic President Bill Clinton, cited “persuasive” evidence by the state that assault weapons are instead more often sought out for their militaristic characteristics and are often used in crimes and mass shootings.
This is an interesting interpretation on the Second Amendment that will probably end up being brought before the Supreme Court. Unfortunately, with the current roster of Supremes I expect it to fail.
Any caliber reasonable for self defense will overpenetrate through all walls of your home at lethal velocities. .380, 9mm, .45, 5.56, 12 ga buckshot, if you miss your target it will overpenetrate. Drywall has about as much bullet resistance as paper. The only way to prevent any over penetration is firing hollow point ammunition at your target and not missing.