Got my first Mosin, from local gun shop. It's a 1926, hex receiver, izhevsk marked. Matching bolt and receiver. Pretty good condition, nice finish. Has hammer and sickle marking on receiver. Overall really happy with it. First impressions, man it's heavy, but I like it! Love the weight of it and how it feels. Bolt action is pretty smooth. Trigger seems nice. It has a lot of what I assume is Cosmoline on it, especially in the bolt area, and receiver. I think some of that is brake grease too, as the guy at the shop told me he had put some in it to keep it lubricated. It seems to have very little wear. I can't wait to get to shoot it some. But first I have to clean out and remove this gunk/grease/cosmoline or whatever it is. I can do it myself, or the gunshop who sold it to me said they would do it for like 30 bucks for me. I just want to get this gunk out and get it to where it's ready to shoot, then I will be good to go to keep it cleaned and maintained myself. In the meantime, I'll keep learning all I can about it. Should I let the gunsmith clean the cosmoline out for me and get it ready to fire? Or should I try and do it myself? Thanks.