ORIGINAL: stubblejumper
With a break you can open and shut it,
Very few muzzle brakes can be turned on and off.The one used by savage is the only one that I know of.Even so,turning off the brake can effect the point of impact,so the gun must be sighted in with the brake off,or removed,if you intend to hunt with the brake off.
That's the first I've heard that one. My 7 mag doesn't need a brake, It was on the gun when I got it. I haven't seen any defference inpoint of impactwith the brake open or shut. Interesting.