I recently purchased a Remington 700 in .308win, and would like to shoot 175gr. Ideally, I'd like to hear input from someone with experience with this round before I invest the time/money. My concern is that the rifle wears a 26" heavy contour barrel, and has a 1 in 12". I've heard concerns about 168gr. and heavier loads in this barrel due to it's relatively slow twist. Will the 1 in 12" be sufficient to stabilize 175gr. Sierra Match King?