Check out theboxotruth.com. They’ve tested all sorts of ammunition against all sorts of barriers.
Rifle bullets are relatively small, lightweight, and fast. When they impact building materials, they tend to shatter. They’re dangerous on the other side of the first wall, but they’ll lose a lot more energy a lot faster.
Pistol bullets, buckshot, slugs, etc are relatively large, heavy, and slow. They tend to remain intact and carry more energy through multiple walls.
A lot of law enforcement agencies switched their long guns from pistol-caliber carbines to 5.56 rifles specifically because they over penetrate less.
Check out theboxotruth.com. They’ve tested all sorts of ammunition against all sorts of barriers.
Rifle bullets are relatively small, lightweight, and fast. When they impact building materials, they tend to shatter. They’re dangerous on the other side of the first wall, but they’ll lose a lot more energy a lot faster.
Pistol bullets, buckshot, slugs, etc are relatively large, heavy, and slow. They tend to remain intact and carry more energy through multiple walls.
A lot of law enforcement agencies switched their long guns from pistol-caliber carbines to 5.56 rifles specifically because they over penetrate less.