Please pardon rather naive questions about a barrel replacement but have never done it before. I have a shot-out Model 12 Savage that I'd like to re-barrel. I know I can do that myself but the problem is I'd like to refit it with a long, heavy target barrel for shooting targets at 500 meters which is as far as you can get at our range. I was all set until I realized that my factory stock, which I'd just as soon keep, probably would not accommodate the larger diameter barrel. Do most folks just buy an aftermarket stock? Are there inexpensive ones that will work for what I want? Can the factory one be hogged out? It's not a wood or composite one. Probably some sort of fiberglass, I suppose. I'm not into fancy and beautiful and frankly could care less how it looks as long as it shoots.