I don't, my brother does (he just did his first one)

While he does work on Mil surplus, I have done the checks on those as well and both the Model of 1917 and the K31 match each other in that they have a long shoulder. i.e. out almost to complete field reject.

While I know that excess head space can be a major issue with repeat firings, once the case if formed, if you do the minimum setback that stops that issue.

The other aspect is if you set it too far out the cartridge will not fire.

Too tight and you can't close the bolt.

If was going to do it then I would probably get a stripped bolt, taking the head and the ejector and extractor in and out would get tedious quickly.

Savage is safer with a fully enclosed bolt head as well (not that we use a safety as an operaitn control of coure)