Thank you, Postman! I do have the third edition of Wright's book. It is helpful, and the fourth edition should have information about how sights were used in the 1870s-1900 vs today. There's clearly a difference but I'm not yet in that groove. More information about moulds, lead alloys, paper patching, and gunsmiths capable of helping. Both doubles and singles are in my arsenal. Right now I'm working on a Charles Lancaster oval bore .450 SxS. What would really help is to have an original Lancaster.450 bullet mould, or get some bullets cast from one. I've been experimenting with .452, .453, .456, .457, .458....all paper patched. One thing the wright book helps me understand is the idea of relative accuracy, though when this gun is just right, it is incredibly accurate. Getting a load that is consistent is the challenge.