Skim bedding. A service that is very likely to be viewed as the industry standard when applied to fitting a barreled action to a rifle stock.
Here the action is cast in the stock using the existing inlet features. Attention is paid to ensure the receiver registers in a tension-free "nest" so that recoil from shot to shot is transferred to the stock consistently.
We take it a step further by using a milling center to finish the cosmetic cleanup work once the casting is made. It offers virtually no performance gain but it does "finish" the inletting with a much cleaner presentation.