The second printing of this book is coming out next month. For gun geeks this is a great book. Lots of math and experimental results to back up the theory. I have a copy of the first printing someplace. I got it probably 7 or 8 years ago and immediately went out and did some of my own experiments to verify things. The results looked good. From the web page:
Bullet Penetration describes the analysis and testing of a model of bullet penetration dynamics; this model is a significant technical advance over what has been heretofore available. This penetration model is directly related to understanding the production of an incapacitating wound by the bullet parameters (velocity, weight, shape, diameter). Incapacitation from wound trauma is a complex subject that has been controversial for many decades, and all aspects of this subject are discussed in detail in Bullet Penetration. The new results in this book are described in a style and vocabulary that make the basic principles and results understandable to the layman. This outstanding book should be read by everyone who is critically dependent on handgun bullet performance as well as all those with an interest in any aspect of wound ballistics.
The topics covered in Bullet Penetration include physiological and psychological effects in incapacitation from wound trauma, modeling of bullet penetration, and modeling of bullet expansion. The realities associated with the desired “one shot stop” and the ignorance and/or fraud in “combat data” claims are discussed in detail. The primary focus is on handgun ammunition, but the principles and many of the results are also applicable to rifle ammunition. The book has 303 pages, including 69 pages of bullet photographs and graphs of test results.