I would like to learn how to shoot rifles at targets ... taking it one level to longer as I go. What I have is a ar15.... 22-250... 30-06. From what I understand this will take me further in distance as I learn. But for my longest shooting rifle I have been told I need a bolt action 6.5 Creedmore or 308. I know I will also need to fous on scopes. But can you please guide me as what ones to start with and then next distance. Also would you suggest about the longest one I will need to start saving back for to purchase, I plan to use a leadsled. Any help to guide me on my path going on in the future.