Considering rebarreling a 70 classic wsm action and have a question in contour. Has standard sporter right now and am wondering what contour would be similar? Or I’d like the muzzle to be a little larger, ending at .6-.62” with 24” but don’t want to add a ton of weight. It’s going to be a 300wsm, with a goal end weight of 7.5-8lbs with Leupold 3-10 in Talley Lw.