>Here's the lightest round in common use, 22LR, holing 8 layers of drywall sequentially. This is 1/12th as much muzzle energy as .223: 22LR doesn't tumble. >H

>Here's the lightest round in common use, 22LR, holing 8 layers of drywall sequentially. This is 1/12th as much muzzle energy as .223: 22LR doesn't tumble. >Here's pricy specialty frangible rounds designed not to go through walls... still going through walls in a test: Frangible rounds are usually used so it doesn't ricochet and hurt someone. It just becomes dust when it hits something hard that would normally bounce a bullet.