I completed cleaning off the cosmoline, striped the stock down to the wood, and hand rubbed it with Boiled Linseed oil 4 coats. came out nice. I took all metal parts completely apart and cleaned with mineral spirits, (did not punch out the extractor) used Kroil on all parts of metal. After putting it back together, the bolt works good ONCE it is full open. But when opening it seems to bind at the last half inch of bolt movement upward, after I pass that point all is fine. Even the bayonet fits and locks/unlocks in place nicely. Any have advice on what is taking place. Thanks in advance. I have attached photos.