Cause the vast majority of brakes mentioned and commonly used didn't even exist as concepts when this test was done let alone real product47 replies and no one has referenced the best test done?
Muzzle Brake: Summary of Field Test Results
This post summarizes the eye-opening results for the massive muzzle brake field test I’ve worked on ...precisionrifleblog.com
it’s a few years old but the data is excellent. That being said. APA are, in my opinion, the best. I’ve tried just about everything and don’t even bother with others now.