Written by Mike Venturino, 205 pages, soft bound, 8 1/2" x 11". If you shoot Colt single actions, including percussion models and conversions, this is an absolute must for you. Well over 200 photos showing the old Colt revolvers. Loading for both smokeless and black powder in all the calibers, Colt styles, calibers and generations. There is no other book on the subject like it.