John, while those #'s may be just a tad low, not by much. The spread is only 22.8 so the seal is not too terribly tired, so I wouldn't exspect alot more from a good tune. I will say that it is a keeper 10+ years old and still that consistent is very good. I think that after a tune and breakin it will be around 5, which doesn't seem like much, until you look at the targets. That's just my thoughts and I don't know much since I've just recently gotten back into airgunning,hehe.
Mike