While we're adding oddball 6.5's to the list, here's a "6.5 Vais" that I used to shoot 10 years ago.
It's an improved 6.5x55 Swede with a 30-degree shoulder and a nice, long neck. It was sweet and VERY well behaved - 3000 fps shooting moly'd SMK 142's.
I think that Geoge Vais had a whole line...