The book is called oddly enough, "Wildcat Cartridges" by Wolfe publishing it's a combo edition, over 1,000 pages, I think it cost around 40 bucks. It ( 17 B ) required two form dies and the reloading die set. First die set the shoulder back and the next took it down to 17 cal, but it also required neck reaming after setting the shoulder back so the neck wouldn't become too thick when necked down to 17 cal. He got 2445 FPS out of a 10" barrel.