I just picked up a 788 in 22-250 today from a local gun shop and when I got it home under some brighter lights noticed that the front sight metal has a reddish hue. Any idea what causes this and is there anyway to get it back to the original color? I had a gun smith blue an old 22 and almost all of the metal turned red. I'm pretty sure this gun hasn't been reblued but I'm not positive. The gun has a few minor handling marks but other than that it doesn't appear to have been fired much (the crown is still blue and there are no marks on the face of the bolt).