Reference no: EM133920824

Questions:

• Describe polygonal rifling.
• Describe conventional/cut rifling.
• What rifling do you think would be easier to make an identification or elimination on?
• Research what brands of firearms have polygonal rifling and which brands have conventional/cut rifling. Name three manufacturers who manufacture firearms with polygonal rifling and three manufacturers who manufacture firearms with conventional rifling.
• What are potential advantages to having a firearm with polygonal rifling versus conventional rifling?
• Name four different types of bullets (not calibers) and describe what they are typically used for. What are reasons a customer would choose this type of bullet over other types of bullets?
• When trying to identify these bullets, do you think that it would be more difficult to identify/eliminate a lead bullet or a copper jacketed bullet and why? (when approaching this question, keep in mind that lead is softer than copper)
• Name all of the steps in the cycle of fire and give a brief description of what happens in each step.
• Name two types of centerfire primers and give a brief description of the components. Make sure you describe how they are different.
• Describe how a single-action revolver functions and describe how a double action revolver functions.
• Name four different types of actions used to load a shotshell into a shotgun.
• Describe how a derringer functions. Describe how this type of examination would be different when examining both fired cartridge cases and fired bullet than a pistol or revolver
• What are the main tools that a firearms examiner uses in the analysis of ammunition components?
• Safety is a top priority in the laboratory and when dealing with firearms. What are firearms safety rules? What safety considerations need to be considered when handling firearms in the laboratory setting and when firing firearms in a laboratory setting?
• What is the range of conclusions for firearms examinations and give a sample statement of each type of conclusion?
• What is the AFTE Theory of Identification and what does it mean?
• What are three different types of breech face marks? What are three different types of firing pin impressions?
• Define class, subclass, and individual characteristics for firearms examination. Name three class characteristics for cartridge cases. Name three class characteristics for fired bullets.