Originally Posted by
BCRider
If you really want to scare yourself saw an empty cartridge in half lengthwise some time. The walls on these things look pop can thin. On second thought don't. It'll scare you so badly that you'll never want to hold one again knowing how much pressure is inside and what the metal could do if one were to suddenly decide to burst....
I KID! I KID!

But the walls really ARE thin.
I just hacksawed a 12g crosswise and think the walls are pretty
thick. Definitely can't even bend it at all with your fingers, like you can with a pop can.