I have a muzzle brake on my .300 Wby. Yes it's louder.....BUT felt recoil is like a .243 or such. If you are building or shooting a lightweight rifle in a magnum caliber, they can be very advantagous, especially if you are sensitive to recoil. I do believe in a lot of cases they will help you become a better shot, because they can help by keeping the shooter from flinching. Magnum calibers in a lightweight rifle can be brutal to a lot of shooters. I am RangeMaster during our Hunter Sight In Days at our local rifle range and I have seen it first hand.The advice to shoot a rifle with one installed is great, then make up your own mind.