Keith's advice is good. My dad tries to maximize the space in
his gun safe by removing the bolts. I can see how easily if
the owner dies and someone inherits things, bolts can become united with the wrong rifles. I think a year or so ago there
was an NRA sporter on gunbroker with a bolt that was serial numbered to a different rifle.

Oddly enough, a similar thing happened to me. I won 1903
in an Amokseag silent auction, only to find that someone
shoved a military bolt into a sporter. Fortunately I had
also won a parts grouping several months previously that also
included a nice sporter bolt. Both bolts headspaced correctly
as did a third that I tried with the action.

So my advice, for what it is worth, is

1. Try Keith's idea, if it doesn't work

2. Be patient and see what happens in the next six months and see if any parts groupings show up on gunbroker or ebay that look like they might include a bolt that would look good with your rifle.

3. If the current bolt works ok, as far as shooting it with iron sights, then maybe have a new handle welded on to work with the scope. I think the Parkerizing could be removed and you could polish the bolt bright.

I like the shape of the cheek piece and color case-hardened
Niedner butt plate.

Fred