Hello, I have a savage 111 (110-116 are the same rifle) in 7mm Rem Mag, i want to turn this gun into along range hunting rifle/competition gun (like out to maybe 500 yards) i have the original stock on it and am going to get a Karsten adjustable cheek-piece. My first question is, does anyone have any experience with these? Also i want to have the bolt handle threaded for different bolt knobs, where can i buy one? would also like the barrel threaded for a muzzle break and have something personal engraved on her, I would hate to send off $600 gun along with a $500 dollar scope, where is a good gunsmith in the billings area? And is it true that billings gunsmiths are a bunch of assholes? I've seen a couple bad reviews about them so yeah.