I consider Wayne mccleran's books on BPCR to be the ultimate authority not only on the Winchester rifles..but also on load development for BPCR Silhouette. Wayne knows his stuff and is a constant High level BPCR Silhouette competitor.
We only shoot 22 bpcr now and today I found two more of Wayne's books in a box.
Message me your address and I'll mail the to you..free of course.