An extremely well written review of what the author did to improve the accuracy of a Remington model 721 in .270 caliber rifle from 1.5" groups down to 0.5" groups. He explains why and how he performed each step of the improvement process. He touches on some of the most common accuracy issues that shooters deal with every day. Any hobbyist with a moderate understanding of reloading ammunition and rifle construction can easily understand what the author is trying to teach. A must have for any serious gunsmith or re-loader with an eye toward optimizing the accuracy of any rifle.