Ok guys i am an old shot gunner looking for a new game. I think f-class is for me. I have several rifles and i have some experience shooting them but zero competition experience with rifle.. I have a rem 700 action and i am thinking about a Mcmillan f-class stock. I need you guys to suggest what and how to set this rifle up. Cal, barrel, how far do i true out the action, those kind of things. Lee