Agreed. Extra weight is the way to go. The blast from a muzzle brake is absolutely ferocious.Don't do it. Your spotter and fellow shooters will hate you for it. If your 223 is kicking you too much add a couple pounds of weight to the rifle or get a 17fireball
DB, that looks like one heck of a rig, and from the looks of the table, you have the experience to know what would work!