This book is a complete and detailed study of all the available brands and types of rimfire ammunition. Never before has such an exhausting and comprehensive undertaking been done. The author fired every brand and sample of rimfire he could acquire, and he meticulously recorded every detail of the results. His methodology was sound and precise, and his results are astounding. Eleven different manufacturers and 137 different rimfire rounds were tested with over 32,000 rounds fired. All available brands and types from benchrest to 17 HMR and 22 WMR were tested in custom, factory and semi auto rimfire rifles. Softcover, 352 pages, over 600 photos, 6 x 9 inch format. Mfg: Zediker Publishing