Perhaps you didn't know, but the "good Doc" is a....................DENTIST. He does NOTHING different that you cannot Google for free on ATK's or Winchester's respective websites: shoots gel & sometimes with barriers. He also is a lackey of Dr. Martin "Big Bullet" Fackler who decried the 9mm +p+ as bad, yet he never talked to anyone from the BP or ISP who actually shot people with it & swore by it.
If you want to know how bullets work on people talk to people who have shot people & not gel.
Brief listing
Dr. Roberts is currently on staff at Stanford University Medical Center; this is a large teaching
hospital and Level I Trauma center were he performs hospital dentistry and surgery. 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.
I'd say he's qualified to comment on ammo/wounding etc.
...and I agree with Stu...your attitude is pointless....why come at him or me that way?