Does a .44 Magnum ALWAYS Over-Penetrate? Wood Penetration Test - 9mm VS .44 Magnum!

” A .44 Magnum will always over-penetrate, it will go through the back guy then through 4 walls and then kill your neighbor!”. I have heard this statement 100’s of times….But is it true? A wood penetration test VS 9mm WILL settle this, and remember boys- load choice matters!