Try one of the foaming cleaners. I use Wipe Out, and Knock Out. They are amazing. Takes all the elbow grease factor out of cleaning, and are particularly effective on copper. As Tunaman stated, blue means copper, and I doubt that the Hoppes got very much of it.
It is unlikely that a rifle new enough to have that trigger on it would be shot out in a .30 caliber. Get it truly clean before you make any decision about it.