This link may be of help...https://www.pyramydair.com/blog/tag/rws-300r/As far as I know, the internals are the same for both units.EDIT: Found this link also...https://www.pyramydair.com/blog/2005/10/diana-rws-46-a-german-underlever/
Jeff,Thanks for the pics of the 46's.Do you have a 460 and how does that compare in terms of shot cycle to the 46 or 300r?Thanks,Shawn