The whiz wheel unit consists of a generic sleeve with interchangeable wheels that correspond to. different weapon and ammunition types. The specific variables that a wheel is built for are: The G7 BC. of the bullet, nominal muzzle velocity, sight height, and either MILS/Meters or MOA/Yards units.
Great question! A physician who is a DO (Doctor of Osteopathic Medicine) is held to the same standards as an MD. They both attend four years of medical school and complete their training during the same residency programs.
Family and general practitioners must be trained to become physicians. It takes a lot of education to become a physician. One must spend four years as an undergraduate student studying as a pre-med major, four years in medical school, and several years in a residency program at a hospital.