A gunsmith/gun trader/hunting guide (Keith Calder) who lives out of an old bank van participated in a shoot where one of the hunters was shot. An innocent man is arrested for it, and Keith knows, because he's responsible for the evidence he put on the man's property that led to his arrest. Calder is innocent (of the murder anyway) as well, and he goes searching for who really did it. There is waayyy to much text devoted to describing different types of guns, gun mechanisms, bullet markings, wadding, etc, which may be of interest to gun hobbyists, but I found it tedious. Additionally, Calder sleeps around, isn't above poaching, and allowed an innocent man to languish in prison for months to protect his own skin. I prefer my lead characters to have principles, thank you very much. This book was the first in a series, but I won't be reading the rest.