The question often comes up and I had always thought they didn't need them. Only hard kicking rifles did
but the advantages of a brake can improve the total performance of the rifle and the shooter (Something we are all interested in.
After doing some extensive testing I have changed my mind, (Rare for an old guy set in his ways)
Recoil has never been an issue with me until it approached or exceeded 80+ ft/ lbs.
Muzzle flash has also not been an issue because the animal is not shooting back. But having a simi
auto for quick follow up shots muzzle control is always an issue for me and on the larger calibers that the AR 15s and AR 10s can handle it realy helps if you can remain on target while shooting.
The attached Video will show that a brake can help even the 223/5.56 calibers to handle better.
There are other good examples on You Tube if interested
J E CUSTOM