I'm having a 308 being built as we speak. It's going to be a practical rifle, as well as an f-class rifle. Now I've decided on few components for my load I know I'm going to be using Lapua brass, BR2's, and Varget. The last thing I have yet to decide is my bullet. I know I want either Sierra MK 155 or 175. I might eventually work up both, but what should be my primary go to bullet for 600 and 1k matches? I'm going to launch them out of a Bartlein 5r with a 1 in 10, and it's going to be 22" from the recoil lug. I'm not going to be hunting with this rifle, so "knock down power" will not be an issue. Thanks!