Dogfish, that's a very interesting and beautiful Fraser rifle you have. Some of the pictures have disappeared can you re post them ?

The Magazine box on your rifle certainly looks purpose built for a rimmed .303 cartridge.

I did see a Fraser rifle once that was marked 303 but had a standard style magazine box. A member of this Forum brought it to my attention that Fraser also produced a proprietary "Rimless" 303 cartridge as well.

To my eyes, the Fraser Mausers are some of the most beautiful magazine rifles ever made. Enjoy yours !

Wyatt