Im going to leave it smoothbore, since I havent a rifling setup as of now. Got barrel bored to 63/64" and am leaving it there since thats the proper size hole for a 1-1/8 coarse tap. Got threads tapped for breech plug, and now ready to taper the barrel. Dont have a taper attachment, so I take off .050 every two inches, and then for the final cleanup passes, back out the tool .002 for every count of two, making marks on the barrel every inch to keep track of the count. Works pretty good actually. I am near Litchfield.