Creature I saw the Box o Truth against a vehicle. The 308 passed through the vehicle and the 223 dented the other side. I'm not allowed to have steel core ammunition which I'm sure would have helped Both get better.
http://www.theboxotruth.com/docs/buickot4_2.htm
I noticed that the 223 also deflected upward from it original path. Check out page one were the hits are then see the exit holes on page 2.