I've got the TC carbine barrel (21") in SS, and it patterns really well. It does seem to throw the pattern high, kind of like a miniture trap gun. I've shot lots of rabbits with mine, generally hunting in heavy brush, you only get one shot any way. Even in the desert on Jacks, after the first shot if ya missed they're out of range. Anyway they are a neat little carry all day type gun, for a smooth bore I couldn't see getting a custom barrel. Check with Ed's Contenders he's pretty reasonable. RR