When you are dealing with fully competent professional gunsmiths, there isn't much difference in the quality of the installation.
Key Ingredient and not easily found
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
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Very true as well