PTGWhere is a good source for a small bolt faced bolt that will fit into a Savage Model 10 short action chambered for a 308. If I were to change to a small bolt nose what parts are required/needed and a source.
There’s no need to run the .223 baffle in a model 10 just because you went to .223. I removed mine because I’m mag feeding longer .223 from aics magazines. There’s no harm in shortening the stroke for .223 if you don’t need the full stroke, but I’ve seen no problem with it removed and using full .308 stroke for.223.Gunshack or Midway should sell everything you need. You will probably need a new bolt face, short action baffle and then the corresponding follower for the magazine.