Mike,

I had a braked .300wby some years ago. It was so loud that I rarely used it (the brake that is, since it was removable), and will most likely never ever own a rifle with a muzzlebrake again.

A far better solution (where legal) is to use a suppresor/silencer. The BR-Reflex pictured below is designed for use on hunting rifles.

Obviously it won't make all the sound go away, but it'll take away the kick, and bring down the sound level to a reasonable level. Quite a lot of hunters are now beginning to use them here in Norway to protect their hearing while out hunting in the woods.

Erik

Edited to clearify my post a little...