Thinking about getting one of these and was just wondering if anyone has one and what they think of them. Going back and forth between this or a .22. Going to be my first rifle and just want make the right choice for targets.

I am so new to this, so please bear with the stupid questions. What is the reason for replacing the factory stock, other than wanting one in a different grip? How does a stock effect how the gun shoots? More specifically, where would I be able to find good after market stock for a heavy barrel...