Feenix-
I have muzzlebrakes on all of my .300's except for 1. They are all great rilfes, but all very very light. As stated above, I have a hard time shooting very light rifles accurately when in a hurry to get rested, and on target. I don't have this problem with my heavier 8.5-9lb rifles.
Good on you! Most of my hunting rifles on average are 10-12 lbs hunt ready.