I have a .338 WM in a M700 Remington with a factory muzzle brake. Tried removing the brake for a couple of shots and found a) the recoil was more than I wanted to contend with, and b) the bullets didn't have the same impact point.
I believe Remington has an attachment for the barrel intended to protect the threads when the brake is removed. My gun did not have this attachment so I don't know if the point of impact would have been unchanged if there had been an attachment i.e. the weight of the attachment would have been similar to the weight of the brake.
What has been the experience of others with changing points of impact when a muzzle brake is either removed or covered?