Muzzle crowns on tactical rifles

[Hotwired]

After reading about modifying mosins on the forum, I have a couple of questions about the muzzle crowns after the barrel has been shortened. If you plan on putting a muzzle break, flash hider or suppressor, what crown should you use? I have seen the crown on my old cetme(which I miss very much) when the muzzle break was changed, it really didnt have a crown, looked like it was just cut off with a hacksaw and then the bore was cleaned up with a grinding bit, was not a quality job at all, smoothed it up before putting the new break on. Nothing like the one on a target rifle, it was like a factory rounded and polished. What say the group?