Hey Old Toot, check these mounts out. They're worthy of consideration.
https://www.ebay.com/itm/Savage-99-Vintage-WR-Weaver-Matte-Pivot-Swing-Away-Mount-Bases-1-Scope-Rings/133574061367?hash=item1f19a26d37:g:d20AAOSwvgheGvo3
https://www.ebay.com/itm/EGW-HD-Savage-Model-99-Picatinny-Rail-0-MOA-Factory-Drilled-and-Tapped-Models/264885168983?hash=item3dac62eb57:g:bygAAOSwm39fXkf8