I dont know much about Air Guns but Van Jacobi over at AirHog is a good friend of mine, he told me that Falcon Air Guns will have a new model out that will go through a 2x4 (piece of lumber) at 50yds. Keep in mind this is not a spring piston, reverse recoil type gun. It does use a Air cylinder to pressurize it though.

You would have to contact him if you wanted more info on it.

CB