Not only will a properly designed brake reduce felt recoil but it will also dramatically reduce muzzle jump. In some cases totally eliminate muzzle jump when the rifle fires. THis allows you to stay on target and spot your own shots which is extremely valuable to the LR shooter.
Things to keep in mind with muzzle brakes
. These are general comments but in most cases stand true. The smaller the bore of the rifle the more effective the brake will be.
The larger the case capacity, the higher the muzzle pressure will be and the more effective the brake will work at decreasing felt recoil.
Combine the two, a smaller bore with large case capacity and you will have alot more muzzle pressure and the brake will work extremely well.
For instance my 257 Allen Mag with a 156 gr bullet at 3300 fps. THis is the same recoil class as a 7mm RUM in same rifle weights but when fitted with a Holland or Defensive Edge muzzle brake
recoil of these rifles is about that of a varmint rifle in 22-250, they simply do not recoil.
Parition style brakes such as the Defensive Edge and Holland are more effective at reducing recoil but because of this they also will produce a more intense muzzle blast impression. There are no trade offs here. The more effective the brake design works, the louder it will be in most cases.
With todays electronic hearing protection devices, there really is no reason not to get a brake because of increased noise in my opinion.