Just getting started in learning about the 99. Always wanted one when I was young, but never had the money. Now feeling a bit nostalgic and would like to pic up a nice condition Savage for my son-in-law to start deer hunting with us next fall.

When did Savage transition from the model 1899s to the 99s? I found the on-site catalogs (which go back to 1937), so I know the 99s started at or before 1937.

Other than naming, did this switch mark any significant mechanical changes?

Thanks in advance.