I've never worked on a Springfield but have no fear that they would handle either the 416 or 375 adequately. Like the mauser they would have to be opened up a bit but see no reason it can't be done.

They are routinely rechambered to the 300 magnum so the pressure is not a problem.

The thing is there's so much more experience with the Mauser and even the P-17 Enfield when it comes to larger cartridges that we don't see a lot of springfields with the extensive metal work.

Many folks believe that the springfields should be avoided under number 810,000 and possibly that is to be taken seriously but there's a lot of springfields made after that.

Personally they just don't make a nice profile when they're done. However that is subjective and pisses off a lot of springfield owners.