Refinish Help

[renegade757]

I endeavored on my Mosin project, but this winter weather has made things rather difficult. Fast forward many weeks, I finally stripped my Mosin, but some weird spots refuse to die. I need help identifying what these spots could be and how to proceed on a nice finish.

 

[nemesiss45]

That is gun oil soaked deep into the end grain. Im not sure there is any way to get it out. Probably have to stain the rest to match.

 

[renegade757]

I had my suspicions, but I wasn't completely sure. I'm guessing some of that red mahogany stain will cover that quite nicely.