I second nathan. I went with his titanium 5 port beast brake for a 8.9 lb .338 Norma magnum. My second choice would be the Terminator T3, but the 5 port Beast brake reduces recoil just a little better, and is cheaper, even for the titanium version. You can even get one of his 5 port self timing beast brakes for cheaper, and not have to pay a smith to pull your barrel and time the brake, just install it yourself.