Re: hunting with a brake
I can't imagine trying to keep up with it, or hear anything, but the best way to protect your hearing is to wear in-the-ear-canal plugs and over the ear muffs.
Part of the reason you get a headache is the bone behind the ear also transmits sound. If you shoot with just plugs you can still suffer significant hearing loss. The ear muff type hearing protectors cover that bone.
I guess you could wear the Walker's and the Peltors. That's a lot of cash to lay out but how bad do you want to hear?
I use the Peltors hunting, and the plugs and Peltors when practicing.