Brownell's has a throating kit (Chamfering kit). Cheap it ain't, about $93.00 for one caliber. The centering guide for a 44 will work, because the Italian rifling is so deep for black powder, the 45 caliber bushing is too tight, as it's sized for modern smokeless rifling. A kit includes one caliber, with a facing cutter, muzzle centering cone, bore guide and choice of chamfer angle, 11 degrees being a good choice. Comes in a plastic case with the rod and handle, and pockets for other sizes of cutters and guides, etc.
