Define polygonal and conventional/cut rifling. What rifling do you think would be easier to make an identification or elimination on?

Define polygonal and 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? Is there an advantage to having polygonal rifling over conventional rifling?

Name four different types of bullets (not calibers) and describe what they are typically used for. 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? (