Re: 7mm WSM build info
Barrel length - 28"
Twist - 1/8.7
Bullets - Bergers and A-Max's
Whatever you end up doing, get your barrel Melonited after a 5-10 shot break in. While I love my 7WSM, it eates through the throat at an alarming rate. And meloniting the barrel or barreled action helpes throat stay where it is. I just wish I knew about this when I had my rifle built.
Anyway, here is mine. It might give you some ideas.
Surgeon RSR WSM action w/20moa double pinned steel base and double pinned .300" recoil lug.
Rock Creek 28" fluted MTU contour barrel, 1/8.7 twist
Badger Thruster brake
Timney trigger @ 1 pound
McMillan A5 stock, pillar bedded
Seekins WSM DBM w/3 round mag
Harris BRM-S bi-pod wth podlock and pod claws
USO SN3 3.8-22x58mm scope, mil/mil
TPS 35mm rings
USO rail mounted anti-cant