I've got a rifle that, when I got it, left a little to be desired. It looked like it had been carried alot, but the bluing was prety nice still. I refinished the wood, and now I've got a rifle I'm proud of.....with one exception. At the front of the reciever where you'd cary a rifle at there's a bunch of tiny rust spots. I've cleaned it off and oiled, but the spots keep coming back more visable again. Is there a way to fix this so it doesn't do this without a total new blue job?