I just searched and found teh picture of 308_nate's muzzle break. It sure does look good!
I have one question however.
In the picture below, the ports are angled forwards. Would you get better recoil reduction with them angled the other way so it would be trying to pull the rifle forward?
I think my 338LM will weigh around the 20lb mark, and would like the recoil to be around teh 308 amount, or better if that can be achieved.