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这个视频里的人可能没啥credit，可以去看看这个人的帖子：
Dr. Roberts， He is the "E.F. Hutton" of wound ballistics:
"Dr. Roberts, LCDR, USNR, is currently on staff at Stanford University Medical Center; this is a large teaching hospital and Level I Trauma center. After completing his residency at Navy Hospital Oakland in 1989 while on active military duty, he studied at the Army Wound Ballistic Research Laboratory at the Letterman Army Institute of Research and became one of the first members of the International Wound Ballistic Association. Since then, he has been tasked with performing military, law enforcement, and privately funded independent wound ballistic testing and analysis. He remains a Navy Reserve officer and has recently served on the Joint Service Wound Ballistic IPT, as well as being a consultant to the Joint FBI-USMC munitions testing program and the TSWG MURG program. He is frequently asked to provide wound ballistic technical assistance to numerous U.S. and allied SOF units and organizations. In addition, he is a technical advisor to the Association of Firearms and Toolmark Examiners, as well as to a variety of Federal, State, and municipal law enforcement agencies. He has been a sworn Reserve Police Officer in the San Francisco Bay Area, where he now he serves in an LE training role."
他的网名是DocGKR。随便搜一个关于9mm vs 40的comment：
.40 made a lot of sense in 1990, however it is not 1990 any more. Technology has improved and 9 mm loads are no longer suffering from insufficient penetration, fragmentation, and inadequate barrier performance. When an agency has to purchase downloaded .40 ammo in order for their agents to qualify and to reduce premature pistol parts failures, then that is a clue that perhaps 9 mm is a better option. Not to mention the financial savings in reduced ammunition costs and increased service pistol life.
By DocGKR on Dec 14, 2013
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发表于 2015-5-30 08:40
发表于 2015-5-30 08:46
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