I am thinking about getting my nephew into the shooting sports 4-H in our town. I am not sure if there is a place to buy used competition style rifles for the 3 position or what exactly is the best route to go for this. CO2, PUMP, or what type of rifle is preferred? I do not want to spend a ton of money on a rifle to start as I am not sure if he will like the competition style shooting or not. Please anyone that can refer me to a site that sells used or new competition style rifles that would be good starter air guns and any information on this would be great.