Define simpler design? The Savage 10/100 bolt is 3 major pieces but they're all mechanically locked together, not brazed or welded. It's more complex in terms of number of pieces but they're each easier to manufacture than a true 1-piece bolt or a 1-piece bolt body with a brazed on handle. Simple designs are definitely something I prefer in technology and mechanical contrivances but complexity and component count are not necessarily coupled. You can literally beat on a Savage 10 bolt with a hammer and you might bust an extractor but you'll have a hard time breaking the handle, body or head. Do that to a brazed-on handle and it may just come off. Do it to a true one-piece and you'll not see a difference. To my mind, and folks are free to argue the point, is that the major benefit of multi-piece bolts are that those with floating bolt heads help to make up for some stacked tolerances like runout or offsets between the centerline of the bolt raceway and the centerline of the bore.
