Curiosity got the better of me. At over $40 is not inexpensive. But I figured that, since I can shoot over forty bucks worth of ammo in 45 minutes and get results that make me wish I hadn't, the book might not be as big a waste of money.
It has enough of everything that will appeal to most rimfire shooters, but it may be especially good for newer NRL22 or PRS-style and ELR shooters.
The best part of the book for all .22LR shooters who are looking for accuracy and precision is Chapter 6 "Rimfire Precision and Accuracy". It has prudent reminders for readers about how some information can be misleading. Too many rifle/ammo reviews give information that can lead readers astray. That's why this book has an absence of target photos. Single targets can be cherry picked and give the wrong impression. Author Michael R. Shea duly explains how different lots can produce different results. He wisely notes that while mechanical accuracy can be bought, improvements are not linear with the dollars spent. In other words, spending twice as much on a rifle may only get a modest improvement in group sizes.
When Shea explains how to measure group size, he commits an error common with many rimfire shooters. He says to simply subtract the bullet diameter of .224 from the outer-most group diameter to arrive at the correct group size. He also mistakenly describes chrome-moly as being easier to machine than stainless steel barrels. He claims that it's "nearly impossible to wear out a rimfire barrel in a lifetime of shooting" -- something with which the most fastidious shooters may not agree. He asserts that "strong accuracy" can be maintained for 200,000 to 500,000 rounds. In something that may irritate or please some shooters, he opines that out-of-the-box T1X rifles are more accurate than 457's. Other sections of the book describe modifications that can be undertaken to improve certain rifles.
The book includes some very interesting and revealing information from the Lapua testing facility that should help shooters understand lot variation. A helpful chart of testing results comparing different rifles and different lots of ammo is useful but it's marred by the careless mistake of mixing up the 50 and 100 meter results.
While there are no doubt mistakes in the book, most are not significant enough to seriously mislead the reader. This is a book from which many rimfire shooters can learn. With a focus on the newer .22LR disciplines (it has little on benchrest shooting), it should have a enthusiastic market.