Always check to make sure that there is a clear path for bullet travel when changing or adding a muzzle brake. The brake you have may have been poorly machined, or it could be the barrel threading job. Something to keep in mind, and most (or all) gunsmiths should know this, is that sometimes...
I am in central Indiana, and I have at least one Gemtech Quickmount that I would like to install ASAP, preferably this weekend. Does anyone know where I can walk in with a few bucks, buy some Rocksett. And walk out? Thanks.