Search Numrich Gun Parts - "Savage 110 Floor Plate" - http://www.gunpartscorp.com/Products/1184740.htm.
Or, get a strip of ebony or tiger maple wood on Ebay. Trace, cut and sand to shape/fit hole. Finish with Tru-Oil and use clear epoxy to glue in place.
Picture shows example of a couple of magazine floor plates made from black ebony and walnut stips for use with Savage DBM stocks.
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