Just about any .22LR rifle will put a slug through a fresh C02 12gr cylinder, causing it to explode with impressive force.
When I was a kid, a buddy put a CO2 cylinder in a Pepsi can (without my knowledge) and informed me I couldn't hit it from where I was standing with my Marlin M60 and Remington Golden bullets. Hell, I was only 20 or so feet away, so I let one loose. Talk about startled... it sounded like I had fired both barrels of a double-barrel 12gauge and the pepsi can simply disappeared. Neat stunt I suppose, but not the safest prank in the world to pull on a friend.