Screwed on the muzzle brake and took her to the range. I shot about 15 rounds, several over the Magneto Speed. For me it's a big "meh"
It certainly cut the recoil. It was certainly louder. But, for me, it really didn't make the experience of shooting the rifle better. It made the rifle longer, but the balance was still nice. It changed the point of aim a couple of inches to the right and and up. Velocity was the same. Spread was the same.
I will probably be putting the thread protector back on. I honestly don't mind the amount of recoil the 308 Norma Mag produces. I have nothing against the brake, there just isn't a reason for me to have it.