PPT-Ballistics Evidence

Notes on page 75 Warning Next slide is slightly disturbing Entrance vs exit wounds Entrance Wounds are typically smaller and neater Exit Wounds are typically larger and messier Collecting and Packaging Ballistic evidence. VMA 83 177 21 00 66 53088 11 1 14 17 HMR 7 gr VMA 8317 55024 90113 13787 15 8 17 HMR 20 gr XT 83 17 5 50 77 6 14 130 1 9 204 Ruger 32 gr VMA 83204 2251268 3645944 3137699 68351 2272367 89925 15 06 4 13 290 204 Ruger 0 gr VMAX 83 06 3900 35 03855 556 Using Lapua Ballistics there is no need for checking tables and calculating cosines for rather imprecise inclination compensation Not to mention the often ignored but vast influence of cartridge temperature on muzzle velocity and atmospheric condit Bullets and Casings. Timeline of Ballistics Examination. 1923:. FBI Bureau of Forensic Ballistics established. 1929:. weapons used in the St. Valentine’s Day massacre identified by matching bullets. Gunshot Residue (GSR); Wounds and Trajectory. Gunshot Residue. Traces of smoke and particles of unburned powder carried sideways from the firearm by the expansion of gases as the bullet is fired. GSR containing nitrates can stick to the person holding the firearm and leave evidence on the shooter. What is Forensic Ballistics. Any projectile is considered ballistic evidence.. These include bullets, arrows, objects launched from a slingshot etc.. Most often the scientist is looking at bullets.. The goal is to match a projectile with the weapon it came from.. 9. /3/15. Bellwork. How are you going to make a match between the crime scene bullet casing and test fired ones?. Ballistics p.34-35. Topic: Casings. Evidence: Match caliber and firing pin impressions to crime scene guns.. 9. /4/15. Bellwork. What part of identifying the casing is the hardest for you?. Closure. What did you learn about the casings by doing this lab?. Bellringer 4/14/15. What is ballistics?. The study of bullets and firearms.. Bellringer 4/14/15. Ballistics Notes . (pages 492 . – 494 – INB 51). What questions are ballistics experts attempting to answer?. 1 articles, however, were concerned with the issue of making a firearm that is inoperable due to rust/corrosion issues, operable. The articles did not address the issues involving the potential for dam COURSE OVERVIEW. This course is designed to help you master the AR style carbine by concentrating on functional and technique aspect of handling your rifle.. The course has been outlined to help you LEARN new information and techniques while allowing you to add to your knowledge base. We have included BASIC and INTRODUCTORY information to accent the outline with FUNDAMENTAL INSTRUCTION.. Crime Scene A: a shot was fired at the white vehicle parked across from the target store. The car is parked 75 ft from the store. A shot was believed to have been fired from the roof of the store. The store is 40 ft tall. Is it possible for the shot to come from the roof of the building? Explain your answer.. Dr. Andrew Ketsdever. Hybrid Propulsion Systems. A hybrid propulsion system is one in which one propellant is stored in liquid (or gaseous) state while the other is stored in solid phase.. Solid Propellant / Liquid (or gas) Oxidizer. With new chapters, homework problems, case studies, figures, and examples, Ballistics: Theory and Design of Guns and Ammunition, Third Edition encourages superior design and innovative applications in the field of ballistics. It examines the analytical and computational tools for predicting a weapon\'s behavior in terms of pressure, stress, and velocity, demonstrating their applications in ammunition and weapons design. New coverage in the Third Edition includes gas-powered guns, and naval ordinance. With its thorough coverage of interior, exterior and terminal ballistics, this new edition continues to be the standard resource for those studying the technology of guns and ammunition.