Should be a 1952 rifle, last 250/300 receivers were about 100,000 higher than that in 1957.
I'd say it's a 99RS if it's never been mucked with. Great find!
“
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
