The most effective brake I've used was the artillery style one from JP Industries. It is heavy, bulky, ugly (unless you are one of the "tactical" crowd who have a warped view of beauty), and kind of a pain to install, but it really works. It also didn't seem as loud as the KDF style brakes. I put this one on a heavy 300 Win Mag and it seemed to recoil about the same as my 6BR "F" class rifle. In other words, not much.
As far as the desirability of any sort of brake goes; I have been making and installing brakes for over 20 years and I have never had one on one of my own rifles. I'm not a fan. GD
