Even through a cylinder choke, I wouldn't shoot a cut shell. The diameter of the shell is far greater than the diameter of the barrel. Try sticking a shell through the muzzle end... you can't. That said, the shell is plastic and will probably compress.
If you want to shoot cheap slugs, look into wax slugs.
Last edited by r1ghtw1ng; 12-07-2012 at 10:21 AM..