I've never heard of an "accurizing package" unless it's something offered by a specific gunsmith/shop. In that case he/they should itemize what's included. Otherwise accurizing a factory rlfle usually includes bedding the action, free floating the barrel (or adding some up pressure at the forend if it seems to help), adjusting the trigger pull, and possibly recrowning the barrel. There are a lot of other things that could be done from bedding the scope bases, lapping/aligning the scope rings, and other things that might or will help improve or maintain accuracy.