I want to build a 338 Lapua tactical rifle based on the REM 700 action with a McMillan A2 or A3 stock. I want the rifle weight to be 15 lbs or less (without scope and assecories). Because the rifle will be somewhat lightweight I am going to put a Badger Ordnance muzzlebreak on it, the break is 2 inches long. I am undecided on the barrel length and contour? I am going to be shooting 300 grn Sierra BTHP's exclusively. I am thinking of a Lilja or Mike Rock fluted barrel with a length between 28-30 inches not including the two inch break. I want to get at least 2800-2850 fps with the 300 grn sierra. Yet I want something that is manuverable. What do you guys reccommend?