I have a browning 300wsm and a 7 mag with boss.Would I buy another boss NO WAY.The first time I shot the 300 I had forgotten to put my ear plugs in and dang I actuall hurt and my ears rang for a 1/2 hour or more.I shoot a lot at least one day a week and sometimes 3 or more days a week .
Have found that the boss is good for someone that only shoots factory bullets but can be something else trying to get a reload to the sweet spot.
To me the 7 mag the recoil is reduced quite a bit but the 300 it isn't as much
And in my opinion the boss is much louder than most of the other type of brakes,think it is the direction the holes are drilled that make it so much louder.
I only shoot these rifles off the bench but if I decide to hunt with them I will sure have ear plugs with me.