i like my 15" 7-08....n wouldn't want a brake on it at all. i can pretty much shoot it long as i want without ill effect. .......and a muzzle brake would make it unnecessarily more unpleasant for other range folks, and require some electronic muffs for hunting(unless ya stick in ear plugs before shooting).
a brake IS good..... IF the recoil is more than you can stand to get the performance you desire, or you have limitations due to physical handicaps and prevention of future hand damage. the OTT shark gill brake is most excellent on my 300 win mag, for example.
i wouldn't want to shoot 180's out of it without one
ouch!