When you are dealing with fully competent professional gunsmiths, there isn't much difference in the quality of the installation. The barrel will be threaded, chambered, profiled, and crowned pretty consistently - and whether it shoots or not will depend on the quality of the barrel itself, as well as other particulars of the firearm and the loads.

These barrels are each somewhat unique - and paying more money for one does not necessarily guarantee they will shoot - just lessens the probability of a "lemon". I have seen factory Remington barrels that could win benchrest matches, and have seen high dollar premium barrels that were fairly mediocre shooters. Also, I have been doing this long enough to have seen certain barrel companies improve the overall quality of their product - and seen others go downhill. So . . . . the bottom line is you roll the dice every time you screw on a new barrel - and you start over again on all your load development.