Home built 25mm Sniper Rifle

[Fosgate]

http://www.youtube.com/watch?v=5D-_e26Vv5o&feature=related

 

[Pimp Daddy]

Wow thru an empty cardboard box from 20 feet. Thats quite the weapon, better watch out for that guy. I mean I could barely throw it that hard.

 

[Fosgate]

I'd liek to see what that Co2 cartridge would do witha cinder block. Would the internal pressure and the impact cause it to explode like a bic lighter smashed on the ground?