40 caliber
NES Member
I just bought a 91/30 Mosin Nagant. After cleaning the cosmoline, I noticed these bumps all over the receiver. I used Mineral Oil suggested from another post. . (was it supposed to be mineral spirits? ) . I used mineral oil on an SKS cleaning and had no problem so I dont think that is it The only other things I can think of is that there may have been some ammonia on the rag from a corrosive ammo cleaning -or- these bumps were there all ready and became visible after the cosmoline came off. This gun was purchased as a shooter, so I don't care that much. I do have a 91/30 hand picked Hex Beauty that I bought as well. I don't want this to happen to that if I did in fact cause the issue.
Pics attached. they are not the best, but they were the best I could get out of my camera in about 20 shots.
thanks in advance.
Pics attached. they are not the best, but they were the best I could get out of my camera in about 20 shots.
thanks in advance.