Hey 4pwr--<P>Sorry it took so long to get back here.<P>I used a ******* file, a square, and a hacksaw to square the muzzle. Works well if you are patient, and, if not, just have your local smith lop it off, or loan you a jig.<P>The round-head, slotted screw will index the same from most any angle, just keep it somewhat straight. It removes metal very slowly, so just keep checking the progress with a loupe or mag. glass, to make sure you aren't cutting more from one side than the other.<P>Just true up the threads on that screw so it spins straight in the drill, and you are all set. Clamp the rifle into a vise, with the barrel wrapped in thick leather, and go to town. A few turns of packaging tape near the muzzle will give you the proper set to use the square on the tapered barrels. When yo no longer see daylight under it, from any angle, bust out the abrasives and finish it up!<P>And if it doesn't shoot at first, all you are out is a bit of cold blue, because you can re-clamp it and file a bit more. I have never needed to, however.<P>Good luck,<P>Jonesey
