All, Do muzzlebrakes impact group sizes of a particular load? I have heard they can impact POI but I am not finding much on if it impacts a loads group size. If so, do you see a tremendous impact on load size or just a little? For example, If I had a load shooting .5MOA with brake, and .6-.7 without that would not bug me too much but if I had .5MOA group go to above .8MOA then I would probably be upset. The reason I am asking is I considering buying a lighter weight magnum rifle and putting a brake on it for load work up and shooting for fun but ultimately I would remove the brake and re-sight in the rifle prior to hunting. I try to wear ear protection when hunting but once in a great while (especially treestand hunting) a deer will surprise me and there is no time to get protection on. Shooting a rifle in open woods, yes can be somewhat impactful on your ears, is nowhere near as bad as if you have a brake on it.