That's the plan for now. I have a spare 6.5PRC barrel, and if this WSM works out, when I have it rechambered I may cut the second barrel to 18" and experiment with the 130. IME, 18" is ideal for a suppressed bolt gun. My daughter's chopped 18" 7-08 is a pleasure to handle and pack around.The 147 has such a high BC it makes up for its weight difference. Based on these numbers I’d go 147.