I can not say how well the 'smith cleaned the gun exactly but it looks and sounds like he did all he could. I am not an expert on this gun by any means but the action appears like it is closing just fine. After the cleaning, the bolt closes much louder and smoother than it did before.

After seeing your comments, it sounds like it has problems grabbing the next shell. Keep in mind that this model is a tube feed, not a clip feed. I think the gun was made in the mid 70's but I am not sure. It just doesn't want to pull the round out of the tube and cycle it upwards into the chamber. It doesn't get caught half way between the tube and the chamber, so it tells me its not grabbing the shell correctly. I don't know if the spring in the tube is too weak to push the next shell or if the part that grabs the shell out has failed somehow??? Thanks for the help so far.