David
If you did find a case big enough to take both rifles at the same time, you would need Sherper Tensing to carry it for you. Gun gear used to do a two gun bag. I could get both my S410 and S400 in it both scoped. Great bag that. I sold mine to Eric from the old Failsworth club. The one with the awfull wasp coloured Styer. He might want rid now Failsworth has closed.

Where are you shooting now?