OK, back to the machinist skills question. If a BR shooter wants to chamber benchrest quality barrels, true actions and such they need to know more about machining and safe machine tool operation than the average Trailways bus driver.
Could the average BR shooter learn the necessary skills. yes.
Do they need to and will they, a few will and a few will not.
For example, Faye Boyer, who has more HOF points than all the posters on this forum combine fries a mean Southern Fried Chicken but running a lathe hasn't helped her yet and probably never will!!!
.