After installing a muzzle brake on a specific rifle I ran the whole process over in my head and most of what I recall, I either didn’t understand or appreciate it. The bore is quite offset from the OD. What makes it shoddy looking or ugly is the fit is pathetic where barrel meets brake. This rifle shoots OK at best…maybe 0.75 MOA at 100 yards, then it wonders out further. For those who have experience in purchasing and fitting custom barrels, what are the simple checks you perform that tend to detect conditions that lend poor accuracy performance? Naturally, I am focusing on barrel blanks that have not been machined for fitting. What or how many squawks will you compile before you send it back for a replacement?