The stamp was originally 30-30, and the R was stamped over the second 30. No idea...

What you need to do is have a gunsmith do a mold of the chamber and measure the dimensions. It might be a 30-30, or might be rechambered to something else. Until you know the dimensions of the chamber, you can't be sure what is it.

[Linked Image]

Last edited by Calhoun; 03/23/17.
“The Savage 99 Pocket Reference”.
All models and variations of 1895’s, 1899’s and 99’s covered.
Also dates, checkering, engraving.. Find at www.savagelevers.com