Found this interesting

[rookrifle]

[xtred1]

Wow, would like to see how far it will go...

[CraigH]

Well, it is an airgun.           Some good science there - liked the supersonic wave.   Good equipment too - Hill pump, Caldwell G2.

[Back_Roads]

 Well glad some one took this test to the next level, I have shot a .50 cal paintball out of my Wing Shot, and discovered nerf darts fit but have not had time to send then across the crono.

[subscriber]

Penetration of those wood boards appears to be a product of shock; as in velocity.   Rather than high energy or high momentum; considering the super low sectional density.