Hey guys just bought a 1949 Sks which is greasy with cosmoline has not been shot since leaving Russia. The gun is rust free all over and in great condition. However when I looked down the barrel it seems to be covered with either huge rust particles or dried cosmoline. Thought it might be rust due to dark orange color however was told it could be cosmoline. What do you guys think and how should I proceed with cleaning. Thank you for your imputes.
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