The muzzle brake is a great feature on a rifle if used properly. I like a MB on my varmint rigs, it allows me to watch POI for a missed shot. Being able to see POI allows me to make an adjustment, and make the next shot count(we are not experts, we miss alot).

We use the threaded MB's which are removable, then we can use the threaded cap for hunting. I have not noticed any difference is shooting the two.

I have used a 243 with a MB to teach alot of kids how to properly shoot a rifle. Believe me I take great care of their ears. Teaching a child the proper way to shoot is much easier when you can take most of the recoil out of the picture. I realize alot of people will say use a 22 LR, and you would be right. However there is nothing like the feel of a high power. After the shooting session, just screw off the MB, and screw the cap back on the end of the barrel.