Elkkillinfull, if you havent already decided on a brake, may i recommend the assassin muzzle brake
from jecustom.com? IMO his brakes are the best on the market as far as recoil reduction. I am also considering rebarreling a gun to a 338 Lapua and will be using this brake, it should bring recoil down to the 15-18 ft lbs range with a 300 grain bullet, that is just below the level of a 7mm rem mag. And if you are looking for a barrel, bugholes.com has some bartleins in stock at the moment.
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom
Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/
My guess on W3P .308 230 Grain Bullet: G1 .740-.755