I rock a 30 cal suppressor for my 6.5 and 7mm calibers with no issues. I also rock a 30 cal Tuebor brake on my 280 Rem with no issues at all. Accuracy is stupid good and recoil on that 280 feels like a 22-250, if that.
Honestly as long as it is a well designed brake like the APA, MPA, 419, etc, then you will see very little performance variance between a 30 cal and a .284 bored brake. If you're shooting a VAIS style, well they just suck altogether so it doesn't matter what the ID is of the brake.