well as far as brakes go, Im sending in the Sendero Im getting to these guys...
Ive heard from several people the recoil eliminator does very well, and any little bit will help when it comes to shooting off the bench with a .300 win mag, for me it well anyways.
for $500.00, they do any rifle and its not just the eliminator, click on that link and check it out.
If I dont like it as much as I thought, no biggie. Im already saving a lot on the Sendero so it wont hurt me either way really.