Don't know RJ, haven't had much luck polishing my feed ramp with the pipecutter. :-/virtual-rjhauser said:hell, even a pipe cutter is better than a dremel.
Seriously, if one DOES use a pipe cutter for shortening a shotgun barrel (don't think it will work on a rifle barrel) back off on the pressure on the cutting wheel. High pressure cuts faster but it tends to deform the tube and actually make it smaller inside at the cut point than the original inside diameter. Real PITA at that point.
Feel free to ask me how I know.