quote: I'm just guessing here, but isn't the sternum like an 3/4" thick? It's got to be 1/2 anyway.
Brian, you are correct. I don't know who did the calc but I most likely said it wrong when I said 1/8". The 3/4" plywood did equal the 1/2" sternum for whoever did the calc. The bone being more dense than the plywood. Should have said 1/2". Checking med sites says 1.7cm which is about 1/2" for the sternum.
Anyway, if your ammo won't penetrate 3/4" ext.grade plywood it ain't gonna penetrate the sternum.