I have a 6.5 Creedmoor, got a brake on it which really helps spotting shots - I can hold it steady enough (yeah, right - it's on sticks, prone on a pack, etc...) to call my own shots at 600 yard plus. DOWNSIDE - if you don't have ear protection in, you will only shoot this rifle once without it - it is LOUD.I'm having a 6.5PRC built for hunting in Montana. My gunsmith asked if I wanted a muzzle brake or not? He suggested a Kampfeld muzzle brake. Any comments out there by 6.5PRC users whether you'd suggest one for hunting? Thanks.
What would I do differently? I probably won't do it at this point, but if I were having a rifle built - I would get a suppressor instead of the brake. My issue is the additional cost for the suppressor, the tax 'stamp' and all of the hoops to jump thru (fingerprinting, etc.).
Real world advice - find someone with that rifle with a brake (your smith knows some) and with a suppressor (he probably knows some) and ask them for their advice and permission to go with them and shoot with them.
Good luck, and let us all know.