Congrats on a sweet rifle! Good caliber too, IMO.
Unless you will plan to shoot off a horses back, I'd muzzle brake it. It's gonna be loud anyhow it's a boomstick. I know people will come chime along and say you don't need to, and you don't. It's so much more comfortable to do so. I don't own a muzzle broken rifle but my father has had three and still has two. His first was a 300 wby mag gifted to him by partners of his practice when we moved from Denver; it came muzzle broken. It was a sweet shooter, felt like a '06 in a 12 pound glassed gun. I took the brake off once to shoot it a few times, and its like a rapid when you think of rolling with it! I did enjoy it, but only two or three rounds. That's apparently where my recoil threshold was when I was a teenager back in the day but I knew my limits. he gave that to my brother, who still has it. My dad has since gotten a 300 win mag bolt and a 300wsm bolt and has had both muzzle broken. They are all very smooth shooters. It's fun to see him and his version of the gun addiction!
*disclaimer: I wouldn't recomend anybody shoot off any horse's back unless it was their horse of years and it'd been trained for such purposes*
