My only experience with a muzzle break was on a .50 BMG. Yeah it did dampen the recoil, but at the expense of dirt, pebbles, and sand blasting me in the face Should have worn a dust mask in addition to my goggles
Don't get too hung up on big bore magnums kid. Unless you're hunting large Kodiaks, Polar Bears, Rhinos, Elephants, etc you'll never find practical use for those large guns.
Elk can be easily taken with a .30-06, and even slightly smaller calibers. In fact more Elk have been taken with the .30-06 than most people will care to admit.